Index to all names including synonyms
This list includes all names accepted in Australian Tropical Rainforest Plants and most of their synonyms (previously published names), each with an information sheet. If the name you are looking for is not on this list, please refer to the Australian Plant Name Index: https://biodiversity.org.au/nsl/services/APNI
[ Accepted Names Index | Family Names Index | Common Name Index ]
A
- Abarema grandiflora (Sol. ex Benth.) Kosterm. is a synonym of: Archidendron grandiflorum
- Abarema hendersonii (F.Muell.) Kosterm. is a synonym of: Archidendron hendersonii
- Abarema sapindoides (A.Cunn. ex Sweet) Kosterm. is a synonym of: Pararchidendron pruinosum
- Abbottia singularis F.Muell. is a synonym of: Timonius singularis
- Abelmoschus moschatus subsp. tuberosus
- Abelmoschus rhodopetalus F.Muell. is a synonym of: Abelmoschus moschatus subsp. tuberosus
- Abroma augusta (L.) L.f. is a synonym of: Abroma molle
- Abroma augustum (L.) Murray is a synonym of: Abroma molle
- Abroma fastuosa Vent. is a synonym of: Abroma molle
- Abroma molle
- Abroma mollis DC. is a synonym of: Abroma molle
- Abrophyllum microcarpum (Bailey) Domin is a synonym of: Abrophyllum ornans
- Abrophyllum ornans (F.Muell.) Benth. var. ornans is a synonym of: Abrophyllum ornans
- Abrophyllum ornans
- Abrophyllum ornans var. microcarpum F.M.Bailey is a synonym of: Abrophyllum ornans
- Abrus precatorius
- Abutilon auritum
- Abutilon hannii
- Abutilon indicum var. australiense Hochr. is a synonym of: Abutilon indicum var. australiense
- Abutilon indicum var. australiense
- Abutilon micropetalum
- Abutilon oxycarpum
- Abutilon sp. Mataranka (R.M.Barker 877)
- Acacia albizioides Pedley is a synonym of: Senegalia albizioides
- Acacia arcuata Spreng. is a synonym of: Acacia melanoxylon
- Acacia aulacocarpa
- Acacia aulacocarpa A.Cunn. ex Benth. is a synonym of: Acacia celsa
- Acacia aulacocarpa var. fruticosa C.T.White is a synonym of: Acacia aulacocarpa
- Acacia aulacocarpa var. macrocarpa Benth. is a synonym of: Acacia crassicarpa
- Acacia auriculiformis
- Acacia celsa
- Acacia cincinnata
- Acacia crassicarpa
- Acacia fasciculifera
- Acacia flavescens
- Acacia flavescens Benth. var. flavescens is a synonym of: Acacia flavescens
- Acacia flavescens var. nobilis Domin is a synonym of: Acacia flavescens
- Acacia flavescens var. typica Domin is a synonym of: Acacia flavescens
- Acacia fleckeri
- Acacia harpophylla
- Acacia holosericea
- Acacia holosericea var. glabrata Maiden is a synonym of: Acacia mangium
- Acacia holosericea var. glabrata Maiden is a synonym of: Acacia holosericea
- Acacia holosericea var. multispirea Domin is a synonym of: Acacia mangium
- Acacia holosericea var. multispirea Domin is a synonym of: Acacia holosericea
- Acacia holosericea var. neurocarpa (Hook.) Domin is a synonym of: Acacia mangium
- Acacia holosericea var. neurocarpa (Hook.) Domin is a synonym of: Acacia holosericea
- Acacia holosericea var. typica Domin is a synonym of: Acacia holosericea
- Acacia hylonoma
- Acacia juniperina (Vent.) Willd. is a synonym of: Acacia ulicifolia
- Acacia lamprocarpa
- Acacia leptocarpa
- Acacia maidenii
- Acacia mangium var. holosericea (G.Don) C.T.White is a synonym of: Acacia holosericea
- Acacia mangium
- Acacia melanoxylon
- Acacia melanoxylon R.Br. f. melanoxylon is a synonym of: Acacia melanoxylon
- Acacia midgleyi
- Acacia oraria
- Acacia oraria F.Muell. var. oraria is a synonym of: Acacia oraria
- Acacia oraria var. amblyphylla Domin is a synonym of: Acacia oraria
- Acacia oraria var. typica Domin is a synonym of: Acacia oraria
- Acacia pennata subsp. kerrii I.C.Nielsen is a synonym of: Senegalia pennata subsp. kerrii
- Acacia penninervis Sieb. ex DC. var. stenophylla Domin is a synonym of: Acacia fasciculifera
- Acacia polystachya
- Acacia sapindoides A.Cunn. ex Sweet is a synonym of: Pararchidendron pruinosum
- Acacia shirleyi
- Acacia solandri Benth. is a synonym of: Acacia spirorbis subsp. solandri
- Acacia solenota
- Acacia spirorbis subsp. solandri
- Acacia thozetiana F.Muell. is a synonym of: Archidendropsis thozetiana
- Acacia tomentilla Zipp. ex Span. is a synonym of: Senegalia pennata subsp. kerrii
- Acacia ulicifolia
- Acalypha eremorum
- Acalypha eremorum Mull.Arg. var. eremorum is a synonym of: Acalypha eremorum
- Acalypha eremorum var. sessilis Baill. is a synonym of: Acalypha eremorum
- Acalypha lanceolata
- Acalypha lyonsii
- Acalypha nemorum
- Acalypha pubiflora subsp. australica
- Acalypha spiciflorum Burm. f. is a synonym of: Cleidion javanicum
- Acanthospermum hispidum
- Acanthus ilicifolius
- Acanthus ilicifolius L. var. ilicifolius is a synonym of: Acanthus ilicifolius
- Acanthus ilicifolius var. typica Domin is a synonym of: Acanthus ilicifolius
- Aceratium concinnum
- Aceratium doggrellii
- Aceratium ferrugineum
- Aceratium megalospermum
- Aceratium megalospermum (F.Muell.) Balgooy var. megalospermum is a synonym of: Aceratium megalospermum
- Aceratium megalospermum var. coriaceum Balgooy is a synonym of: Aceratium megalospermum
- Aceratium sericoleopsis
- Achasma australasicum R.M.Sm. is a synonym of: Etlingera australasica
- Achras brownlessiana F.Muell. is a synonym of: Pleioluma brownlessiana
- Achras chartacea F.Muell. ex Benth. is a synonym of: Planchonella chartacea
- Achras cotinifolia (A.DC.) F.Muell. is a synonym of: Planchonella cotinifolia var. cotinifolia
- Achras euphlebia F.Muell. is a synonym of: Planchonella euphlebia
- Achras laurifolia (A.Rich.) F.Muell. ex Benth. is a synonym of: Pleioluma laurifolia
- Achras myrsinoides Benth. is a synonym of: Planchonella myrsinifolia subsp. myrsinifolia
- Achras obovata (R.Br.) Benth. is a synonym of: Planchonella obovata
- Achras pohlmaniana F.Muell. is a synonym of: Planchonella pohlmaniana var. pohlmaniana
- Achras xerocarpa Benth. is a synonym of: Pleioluma xerocarpa
- Achyranthes amaranthoides Lam. is a synonym of: Deeringia amaranthoides
- Achyranthes aspera
- Achyranthes aspera var. australis (R.Br.) Domin is a synonym of: Achyranthes aspera
- Achyranthes aspera var. canescens F.M.Bailey is a synonym of: Achyranthes aspera
- Achyranthes australis R.Br. is a synonym of: Achyranthes aspera
- Achyranthes grandifolia Moq. in DC. is a synonym of: Achyranthes aspera
- Achyranthes prostrata L. is a synonym of: Cyathula prostrata
- Aciella dictyophleba (F. Muell.) Tiegh. is a synonym of: Amylotheca dictyophleba
- Ackama australiensis
- Ackama muelleri var. pleiocarpa F.Muell. is a synonym of: Ackama australiensis
- Ackama paniculosa
- Ackama quadrivalvis C.T.White & W.D.Francis is a synonym of: Ackama australiensis
- Aclisia macrophylla (R.Br.) G.Bruckn. is a synonym of: Pollia macrophylla
- Acmena divaricata Merr. & L.M.Perry is a synonym of: Syzygium divaricatum
- Acmena floribunda (Sm.) DC. is a synonym of: Syzygium smithii
- Acmena floribunda (Sm.) DC. var. floribunda is a synonym of: Syzygium smithii
- Acmena floribunda var. elliptica DC. is a synonym of: Syzygium smithii
- Acmena graveolens (Bailey) L.S.Sm. is a synonym of: Syzygium graveolens
- Acmena hemilampra (F.Muell.) Merr. & L.M.Perry is a synonym of: Syzygium hemilamprum subsp. hemilamprum
- Acmena hemilampra (F.Muell.) Merr. & L.M.Perry subsp. hemilampra is a synonym of: Syzygium hemilamprum subsp. hemilamprum
- Acmena hemilampra subsp. orophila B.Hyland is a synonym of: Syzygium hemilamprum subsp. orophilum
- Acmena mackinnoniana B.Hyland is a synonym of: Syzygium mackinnonianum
- Acmena macrocarpa C.T.White is a synonym of: Syzygium graveolens
- Acmena resa B.Hyland is a synonym of: Syzygium resa
- Acmena smithii (Poir.) Merr. & L.M.Perry is a synonym of: Syzygium smithii
- Acmena smithii (Poir.) Merr. & L.M.Perry var. smithii is a synonym of: Syzygium smithii
- Acmena smithii var. minor (Maiden) Merr. & L.M.Perry is a synonym of: Syzygium smithii
- Acmena smithii var. minor (Maiden) Merr. & L.M.Perry is a synonym of: Syzygium smithii
- Acmena sp. (Cooper Creek GS 1419) is a synonym of: Syzygium glenum
- Acmenosperma claviflorum (Roxb.) Kausel is a synonym of: Syzygium claviflorum
- Acmenosperma pringlei B.Hyland is a synonym of: Syzygium pringlei
- Acronychia aberrans
- Acronychia acidula
- Acronychia acronychioides
- Acronychia acuminata
- Acronychia baueri f. majoriflora Domin is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Acronychia baueri Schott is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Acronychia baueri Schott f. baueri is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Acronychia chooreechillum
- Acronychia crassipetala
- Acronychia endlicheri Schott is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Acronychia eungellensis
- Acronychia haplophylla (F.Muell.) Engl. is a synonym of: Pitaviaster haplophyllus
- Acronychia imperforata
- Acronychia laevis
- Acronychia laevis J.R.Forst. & G.Forst. var. laevis is a synonym of: Acronychia laevis
- Acronychia laevis var. longiflora Domin is a synonym of: Acronychia laevis
- Acronychia laevis var. normalis F.M.Bailey is a synonym of: Acronychia laevis
- Acronychia melicopoides F.Muell. is a synonym of: Acronychia acronychioides
- Acronychia melicopoides F.Muell. var. melicopoides is a synonym of: Acronychia acronychioides
- Acronychia melicopoides var. lasiantha F.Muell. is a synonym of: Acronychia acronychioides
- Acronychia muelleri (Engl.) W.D.Francis is a synonym of: Melicope elleryana
- Acronychia parviflora
- Acronychia pauciflora
- Acronychia peninsularis
- Acronychia scortechinii F.M.Bailey is a synonym of: Acronychia imperforata
- Acronychia simplicifolia (Endl.) Steud. is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Acronychia simplicifolia (Endl.) Steud. subsp. simplicifolia is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Acronychia sp. (=GS/1329) is a synonym of: Acronychia peninsularis
- Acronychia sp. Batavia Downs (J.R.Clarkson 8511) is a synonym of: Acronychia peninsularis
- Acronychia superba Domin is a synonym of: Acronychia acidula
- Acronychia tetrandra F.Muell. is a synonym of: Pitaviaster haplophyllus
- Acronychia vestita
- Acrothamnus spathaceus
- Acrotriche aggregata
- Acrotriche baileyana
- Acsmithia davidsonii (F.Muell.) Hoogland is a synonym of: Spiraeanthemum davidsonii
- Actephila bella
- Actephila championiae
- Actephila foetida
- Actephila forsteri
- Actephila latifolia
- Actephila lindleyi
- Actephila longipedicellata P.I.Forst. is a synonym of: Actephila forsteri
- Actephila mearsii C.T.White is a synonym of: Peripentadenia mearsii
- Actephila mooreana Baill. is a synonym of: Actephila lindleyi
- Actephila petiolaris subsp. petiolaris
- Actephila petiolaris subsp. jagonis
- Actephila plicata
- Actephila sessilifolia
- Actephila sp. (Claudie River BH 7803) is a synonym of: Actephila forsteri
- Actephila sp. (Little Mossman BH 13697) is a synonym of: Actephila latifolia
- Actephila sp. (Lockerbie WWC 817) is a synonym of: Actephila venusta
- Actephila sp. (Millaa Millaa RJ 494) is a synonym of: Actephila vernicosa
- Actephila sp. (Rocky River G.C. Stocker 1042) is a synonym of: Actephila traceyi
- Actephila sp. (Wooroonooran N.P. P.I. Forster PIF 17151) is a synonym of: Actephila vernicosa
- Actephila traceyi
- Actephila venusta
- Actephila vernicosa
- Actinophloeus bleeseri (Burret) Burret is a synonym of: Ptychosperma macarthurii
- Actinophloeus capitis-yorkii Burret is a synonym of: Ptychosperma elegans
- Adansonia gregorii f. globosa Ostenf. is a synonym of: Adansonia gregorii
- Adansonia gregorii f. typica Ostenf. is a synonym of: Adansonia gregorii
- Adansonia gregorii
- Adansonia gregorii F.Muell. f. gregorii is a synonym of: Adansonia gregorii
- Adansonia stanburyana Hochr. is a synonym of: Adansonia gregorii
- Adelia resinosa Blanco is a synonym of: Mallotus resinosus
- Adeliopsis decumbens Benth. is a synonym of: Hypserpa decumbens
- Adenanthera gogo Blanco is a synonym of: Entada rheedei
- Adenanthera pavonina
- Adenanthera triphysa Dennst. is a synonym of: Ailanthus triphysa
- Adenia australis (DC.) Engl. is a synonym of: Adenia heterophylla subsp. australis
- Adenia heterophylla (Blume) Koord. is a synonym of: Adenia heterophylla subsp. heterophylla
- Adenia heterophylla subsp. heterophylla
- Adenia heterophylla (Blume) Koord. var. heterophylla is a synonym of: Adenia heterophylla subsp. heterophylla
- Adenia heterophylla subsp. australis
- Adenogyrus braunii Klotzsch is a synonym of: Scolopia braunii
- Adenostemma lavenia
- Adenostemma macrophyllum
- Adenostephanus bleasdalei (F.Muell.) Benth. is a synonym of: Bleasdalea bleasdalei
- Aegiceras minus Gaertn. is a synonym of: Rourea brachyandra
- Aeschynomene americana
- Aeschynomene arborea L. is a synonym of: Dendrolobium umbellatum var. umbellatum
- Aeschynomene cannabina Retz. is a synonym of: Sesbania cannabina
- Affonsea lucyi (F.Muell.) Kuntze is a synonym of: Archidendron lucyi
- Affonsea vaillantii (F.Muell.) Kuntze is a synonym of: Archidendron vaillantii
- Afrohybanthus enneaspermus
- Afrohybanthus stellarioides
- Afzelia australis F.M.Bailey is a synonym of: Intsia bijuga
- Afzelia bijuga (Colebr.) A.Gray is a synonym of: Intsia bijuga
- Agapetes meiniana F.Muell. is a synonym of: Paphia meiniana
- Agasta asiatica (L.) Miers is a synonym of: Barringtonia asiatica
- Agathis atropurpurea
- Agathis brownii (Lemaire) L.H.Bailey is a synonym of: Agathis robusta
- Agathis microstachya
- Agathis palmerstonii (F.Muell) F.M.Bailey is a synonym of: Agathis robusta
- Agathis robusta
- Agati formosum F.Muell. is a synonym of: Sesbania formosa
- Ageratina riparia
- Ageratum conyzoides L. is a synonym of: Ageratum conyzoides subsp. conyzoides
- Ageratum conyzoides subsp. conyzoides
- Aglaia argentea
- Aglaia australiensis
- Aglaia brassii
- Aglaia brownii
- Aglaia cooperae
- Aglaia elaeagnoidea
- Aglaia euryanthera
- Aglaia ferruginea
- Aglaia meridionalis
- Aglaia sapindina
- Aglaia silvestris
- Aglaia sp. Silver Plains (L.J.Webb 9734) is a synonym of: Aglaia cooperae
- Aglaia spectabilis
- Aglaia tomentosa Teijsm. & Binn. is a synonym of: Aglaia ferruginea
- Agnostus sinuata Loudon is a synonym of: Stenocarpus sinuatus
- Aidia cochinchinensis Lour. is a synonym of: Aidia racemosa
- Aidia cowleyi
- Aidia racemosa
- Aidia sp. (Gap Creek LWJ 651) is a synonym of: Aidia cowleyi
- Ailanthus imberbiflora F.Muell. is a synonym of: Ailanthus triphysa
- Ailanthus imberbiflora var. macartneyi F.M.Bailey is a synonym of: Ailanthus triphysa
- Ailanthus integrifolia Lam. is a synonym of: Ailanthus integrifolia subsp. integrifolia
- Ailanthus integrifolia Lam. is a synonym of: Ailanthus integrifolia subsp. integrifolia
- Ailanthus integrifolia subsp. integrifolia
- Ailanthus malabarica DC. is a synonym of: Ailanthus triphysa
- Ailanthus triphysa
- Aira effusa Spreng. is a synonym of: Eriachne pallescens
- Alangium polyosmoides subsp. polyosmoides
- Alangium polyosmoides subsp. tomentosum
- Alangium solomonense
- Alangium_sp__Claudie_River_B_P._Hyland_2682RFK is a synonym of: Alangium solomonense
- Alangium_villosum_subsp._polyosmoides is a synonym of: Alangium polyosmoides subsp. polyosmoides
- Alangium villosum subsp. tomentosum is a synonym of: Alangium polyosmoides subsp. tomentosum
- Alangium villosum var. australe Bloemb. is a synonym of: Alangium polyosmoides subsp. tomentosum
- Alangium villosum var. tomentosum (F.Muell.) Bloemb. is a synonym of: Alangium polyosmoides subsp. tomentosum
- Albizia canescens
- Albizia hendersonii (F.Muell.) F.Muell. is a synonym of: Archidendron hendersonii
- Albizia lebbeck
- Albizia lucyi (F.Muell.) F.Muell. is a synonym of: Archidendron lucyi
- Albizia moniliforme(DC.) F.Muell. is a synonym of: Cathormion umbellatum subsp. moniliforme
- Albizia procera
- Albizia pruinosa (Benth.) F.Muell. is a synonym of: Pararchidendron pruinosum
- Albizia ramiflora F.Muell. is a synonym of: Archidendron ramiflorum
- Albizia retusa
- Albizia saman (Jacq.) F. Muell. is a synonym of: Samanea saman
- Albizia sp. Sir Charles Hardy Is (B.Hyland 25849RFK)
- Albizia sp. Windsor Tableland (B.Gray 2181)
- Albizia toona F.M.Bailey is a synonym of: Falcataria toona
- Albizia tozeri (F.Muell.) F.Muell. is a synonym of: Archidendron grandiflorum
- Albizia vaillantii (F.Muell.) F.Muell. is a synonym of: Archidendron vaillantii
- Albizia vaillantii (F.Muell.) F.Muell. var. vaillantii is a synonym of: Archidendron vaillantii
- Albizia vaillantii var. pentzkeana Ewart is a synonym of: Archidendron ramiflorum
- Albizia xanthoxylon C.T.White & W.D.Francis is a synonym of: Archidendropsis xanthoxylon
- Alchornea ilicifolia
- Alchornea rugosa
- Alchornea thozetiana
- Alchornea thozetiana Benth. var. thozetiana is a synonym of: Alchornea thozetiana
- Alectryon bleeseri O.Schwarz is a synonym of: Cupaniopsis anacardioides
- Alectryon connatus
- Alectryon diversifolius
- Alectryon kimberleyanus
- Alectryon oleifolius subsp. elongatus
- Alectryon reticulatus
- Alectryon semicinereus
- Alectryon subdentatus
- Alectryon tomentosus
- Alectryon tropicus
- Alectryon unilobatus S.T.Reynolds is a synonym of: Alectryon reticulatus
- Aleurites moluccana (L.) Willd. var. moluccana is a synonym of: Aleurites moluccanus
- Aleurites moluccana var. floccosa Airy Shaw is a synonym of: Aleurites rockinghamensis
- Aleurites moluccana var. rockinghamensis Baill. is a synonym of: Aleurites rockinghamensis
- Aleurites moluccanus
- Aleurites rockinghamensis
- Aleurites triloba Forst. & G.Forst. is a synonym of: Aleurites moluccanus
- Allamanda cathartica
- Alliaria klanderi (F.Muell.) Kuntze is a synonym of: Dysoxylum klanderi
- Alliaria latifolia (Benth.) Kuntze is a synonym of: Dysoxylum latifolium
- Alliaria nernstii (F.Muell.) Kuntze is a synonym of: Dysoxylum arborescens
- Alliaria oppositifolia (F.Muell.) Kuntze is a synonym of: Dysoxylum oppositifolium
- Alliaria rufa (A.Rich.) Kuntze is a synonym of: Dysoxylum rufum
- Alliaria schulzii (C.DC.) Kuntze is a synonym of: Dysoxylum oppositifolium
- Allocasuarina torulosa
- Allophylus cobbe
- Allophylus crenatus Radlk. is a synonym of: Allophylus cobbe
- Allophylus ternatus (G.Forst.) Radlk. is a synonym of: Allophylus cobbe
- Allosyncarpia ternata
- Alloxylon flammeum
- Alloxylon wickhamii
- Alocasia brisbanensis
- Alocasia macrorrhizos (L.) G.Don is a synonym of: Alocasia brisbanensis
- Alocasia macrorrhizos var. brisbanensis F.M.Bailey is a synonym of: Alocasia brisbanensis
- Alphitonia excelsa
- Alphitonia excelsa (Fenzl) Benth. var. excelsa is a synonym of: Alphitonia excelsa
- Alphitonia incana (Roxb.) Teijsm. & Binn. ex Kurz is a synonym of: Alphitonia oblata
- Alphitonia moluccana Teijsm. & Binn. ex Braid is a synonym of: Alphitonia oblata
- Alphitonia oblata
- Alphitonia petriei
- Alphitonia sp. Forty Mile Scrub (B.Hyland 25763RFK) is a synonym of: Alphitonia excelsa
- Alphitonia sp. Kimberley (B.Hyland 25117RFK) is a synonym of: Alphitonia oblata
- Alphitonia whitei
- Alpinia arctiflora
- Alpinia caerulea
- Alpinia caerulea (R.Br.) Benth. var. caerulea is a synonym of: Alpinia caerulea
- Alpinia hylandii
- Alpinia modesta F.M.Bailey is a synonym of: Alpinia modesta
- Alpinia modesta
- Alpinia racemigera F.Muell. is a synonym of: Pleuranthodium racemigerum
- Alsodeia bengalensis Wall. is a synonym of: Rinorea bengalensis
- Alsomitra capricornica F.Muell. is a synonym of: Neoalsomitra capricornica
- Alsomitra hookeri F.Muell. is a synonym of: Neoalsomitra clavigera
- Alsomitra trifoliolata (F.Muell.) K.Schum. is a synonym of: Neoalsomitra clavigera
- Alstonia actinophylla
- Alstonia angustifolia A.DC. is a synonym of: Alstonia muelleriana
- Alstonia constricta
- Alstonia constricta var. mollis (Benth.) F.M.Bailey is a synonym of: Alstonia constricta
- Alstonia constricta var. montmariensis F.M.Bailey is a synonym of: Alstonia constricta
- Alstonia linearis
- Alstonia longissima F.Muell. is a synonym of: Alstonia spectabilis subsp. spectabilis
- Alstonia mollis Benth. is a synonym of: Alstonia constricta
- Alstonia muelleriana
- Alstonia muelleriana Domin var. muelleriana is a synonym of: Alstonia muelleriana
- Alstonia muelleriana var. parvifolia Domin is a synonym of: Alstonia muelleriana
- Alstonia ophioxyloides F.Muell. is a synonym of: Alstonia spectabilis subsp. ophioxyloides
- Alstonia scholaris
- Alstonia scholaris (L.) R.Br. var. scholaris is a synonym of: Alstonia scholaris
- Alstonia somersetensis F.M.Bailey is a synonym of: Alstonia spectabilis subsp. spectabilis
- Alstonia spectabilis R.Br. is a synonym of: Alstonia spectabilis subsp. spectabilis
- Alstonia spectabilis subsp. spectabilis
- Alstonia spectabilis subsp. ophioxyloides
- Alstonia verticillosa F.Muell. is a synonym of: Alstonia actinophylla
- Alternanthera bettzichiana (Regel) G.Nicholson is a synonym of: Alternanthera ficoidea
- Alternanthera ficoidea
- Alternanthera nana
- Althoffia pleiostigma (F.Muell.) Burret is a synonym of: Trichospermum pleiostigma
- Alyxia actinophylla A.Cunn. is a synonym of: Alstonia actinophylla
- Alyxia grandis
- Alyxia ilicifolia
- Alyxia ilicifolia F.Muell. subsp. ilicifolia is a synonym of: Alyxia ilicifolia
- Alyxia ilicifolia subsp. magnifolia (F.M.Bailey) P.I.Forst. is a synonym of: Alyxia magnifolia
- Alyxia magnifolia
- Alyxia oblongata
- Alyxia obtusifolia R.Br. is a synonym of: Alyxia stellata
- Alyxia orophila
- Alyxia pugioiformis A.Cunn is a synonym of: Alyxia ruscifolia
- Alyxia ruscifolia
- Alyxia ruscifolia R.Br. subsp. ruscifolia is a synonym of: Alyxia ruscifolia
- Alyxia ruscifolia R.Br. var. ruscifolia is a synonym of: Alyxia ruscifolia
- Alyxia ruscifolia subsp. major P.I.Forst. is a synonym of: Alyxia oblongata
- Alyxia ruscifolia var. pugioniformis A.Cunn. ex G.Don is a synonym of: Alyxia ruscifolia
- Alyxia ruscifolia var. ulicina F.M.Bailey is a synonym of: Alyxia ruscifolia
- Alyxia spicata
- Alyxia stellata
- Alyxia tetragona R.Br. is a synonym of: Alyxia spicata
- Alyxia thozetii F.Muell. is a synonym of: Alyxia stellata
- Alyxia thyrsiflora Benth. is a synonym of: Alyxia spicata
- Amanoa cunninghamii (Müll.Arg.) Baill. is a synonym of: Cleistanthus cunninghamii
- Amanoa dallachyana Baill. is a synonym of: Cleistanthus dallachyanus
- Amanoa faginea Baill. is a synonym of: Bridelia leichhardtii
- Amaracarpus nematopodus
- Amaranthus cruentus L. is a synonym of: Amaranthus hybridus
- Amaranthus hybridus
- Amaranthus interruptus
- Amaranthus rhombeus
- Amaranthus spinosus
- Ammocallis rosea (L.) Small is a synonym of: Catharanthus roseus
- Ammomum lycostomum Lauterb. & Schumann is a synonym of: Hornstedtia scottiana
- Amomum dallachyi F.Muell. is a synonym of: Meistera dallachyi
- Amomum queenslandicum
- Amomum silvestre Poir. is a synonym of: Zingiber zerumbet
- Amomum spurium (J. Konig( J.F. Gmel. is a synonym of: Zingiber zerumbet
- Amomum zerumbet L. is a synonym of: Zingiber zerumbet
- Amoora cucullata Roxb. is a synonym of: Aglaia spectabilis
- Amoora ferruginea C.T.White is a synonym of: Aglaia meridionalis
- Amoora nitidula Benth. is a synonym of: Anthocarapa nitidula
- Amoora spectabilis Miq. is a synonym of: Aglaia spectabilis
- Amorphophallus angustilobus F.M.Bailey is a synonym of: Amorphophallus galbra
- Amorphophallus campanulatus Blume ex Decne. is a synonym of: Amorphophallus paeoniifolius
- Amorphophallus galbra
- Amorphophallus paeoniifolius
- Amorphospermum antilogum
- Amorphospermum pruniferum (F.Muell.) Baehni is a synonym of: Niemeyera prunifera
- Ampacus xanthoxyloides (F.Muell.) Kuntze is a synonym of: Melicope xanthoxyloides
- Ampelocissus acetosa
- Ampelocissus gardineri
- Amyema acacioides (Cunn. ex Benth.) Danser is a synonym of: Dendrophthoe acacioides subsp. acacioides
- Amyema bifurcata
- Amyema congener subsp. congener
- Amyema congener (Sieber ex Schultes & J.H. Schultes) Tiegh. is a synonym of: Amyema congener subsp. congener
- Amyema congener subsp. divergens
- Amyema conspicua subsp. conspicua
- Amyema dolichopoda
- Amyema friesiana
- Amyema glabra
- Amyema Obliquum (Blakely) Danser is a synonym of: Amyema glabra
- Amyema plicatula
- Amyema quandang
- Amyema quaternifolia
- Amyema queenslandica
- Amyema scandens subsp. plicatula (K.Krause) Barlow is a synonym of: Amyema plicatula
- Amyema seemeniana
- Amyema villiflora subsp. villiflora
- Amyema villiflora subsp. tomentilla
- Amyema whitei
- Amylotheca brittenii (Blakely) Danser is a synonym of: Decaisnina brittenii subsp. brittenii
- Amylotheca dictyophleba
- Amylotheca hollrungii (Schumann) Tiegh. is a synonym of: Decaisnina hollrungii
- Amylotheca signata (F. Muell. ex Benth.) Danser is a synonym of: Decaisnina signata
- Anacolosa papuana
- Anasser moluccana Lam. is a synonym of: Pittosporum moluccanum
- Anaxogorea sumatrana Miq. is a synonym of: Uvaria micrantha
- Ancana hirsuta Jessup is a synonym of: Meiogyne hirsuta
- Ancistrachne uncinulata
- Andropogon contortus L. is a synonym of: Heteropogon contortus
- Andropogon exaltatus R.Br. is a synonym of: Cymbopogon procerus
- Andropogon exaltatus var. ambiguus Hack. is a synonym of: Cymbopogon ambiguus
- Andropogon refractus R.Br. is a synonym of: Cymbopogon refractus
- Andruris australasica (Hemsl.) Giesen is a synonym of: Sciaphila arfakiana
- Aneilema acuminatum
- Aneilema crispatum R.Br. is a synonym of: Pollia crispata
- Aneilema macrophyllum R.Br. is a synonym of: Pollia macrophylla
- Aneilema papuanum
- Aneilema siliculosum
- Anila prostrata (L.) Kuntze is a synonym of: Indigofera linnaei
- Anisomeles inodora
- Anisomeles macdonaldii
- Anisomeles moschata
- Annona glabra
- Annona squamosa
- Anredera cordifolia
- Anthobolus filifolius
- Anthobolus triqueter R.Br. is a synonym of: Anthobolus filifolius
- Anthocarapa nitidula
- Anthocephalus chinensis (Lam.) A.Rich. ex Walp. is a synonym of: Neolamarckia cadamba
- Anthocephalus morindaefolius Korth. is a synonym of: Neolamarckia cadamba
- Antiaris macrophylla R.Br. is a synonym of: Antiaris toxicaria subsp. macrophylla
- Antiaris toxicaria Lesch. is a synonym of: Antiaris toxicaria subsp. macrophylla
- Antiaris toxicaria subsp. macrophylla
- Antiaris toxicaria var. macrophylla (R.Br.) C.C.Berg is a synonym of: Antiaris toxicaria subsp. macrophylla
- Antidesma bunius
- Antidesma dallachyanum Baill. is a synonym of: Antidesma bunius
- Antidesma dallachyi F.Muell. is a synonym of: Antidesma bunius
- Antidesma erostre
- Antidesma ghaesembilla
- Antidesma ghaesembilla Gaertn. var. ghaesembilla is a synonym of: Antidesma ghaesembilla
- Antidesma ghaesembilla var. genuinum Mull.Arg. is a synonym of: Antidesma ghaesembilla
- Antidesma hylandii
- Antidesma parvifolium
- Antidesma schultzii Benth. is a synonym of: Antidesma ghaesembilla
- Antirhea myrtoides (F.Muell.) F.M.Bailey is a synonym of: Bobea myrtoides
- Antirhea ovatifolia
- Antirhea putaminosa
- Antirhea sp. Lower Downey (B.Gray 5536) is a synonym of: Amaracarpus nematopodus
- Antirhea sp. Mt Lewis (B.Gray 5733)
- Antirhea tenuiflora
- Aphananthe philippinensis
- Aphananthe rectinervis (F.Muell.) Planch. is a synonym of: Aphananthe philippinensis
- Aphania senegalensis (Juss. ex Poir.) Radlk. is a synonym of: Lepisanthes senegalensis
- Aphyllorchis anomala
- Aphyllorchis queenslandica
- Apocynum frutescens L. is a synonym of: Ichnocarpus frutescens
- Apodytes brachystylis
- Apowollastonia longipes
- Aralia cephalobotrys (F.Muell.) Harms is a synonym of: Cephalaralia cephalobotrys
- Aralia macdowallii (F.Muell.) F.M.Bailey is a synonym of: Polyscias mollis
- Aralia motherwellii F.Muell. is a synonym of: Motherwellia haplosciadea
- Aralia nodosa Blume is a synonym of: Polyscias nodosa
- Araucaria bidwilliana Siebert & Voss is a synonym of: Araucaria bidwillii
- Araucaria bidwillii
- Araucaria cunninghamii f. glauca (Antoine) F.M.Bailey is a synonym of: Araucaria cunninghamii var. cunninghamii
- Araucaria cunninghamii Mudie is a synonym of: Araucaria cunninghamii var. cunninghamii
- Araucaria cunninghamii Mudie f. cunninghamii is a synonym of: Araucaria cunninghamii var. cunninghamii
- Araucaria cunninghamii var. cunninghamii
- Araucaria cunninghamii var. glauca (Antoine) Endl. is a synonym of: Araucaria cunninghamii var. cunninghamii
- Araucaria cunninghamii var. longifolia Endl. is a synonym of: Araucaria cunninghamii var. cunninghamii
- Araucaria glauca Antoine is a synonym of: Araucaria cunninghamii var. cunninghamii
- Archidendron grandiflorum
- Archidendron hendersonii
- Archidendron hirsutum
- Archidendron kanisii
- Archidendron lucyi
- Archidendron papuanum Merr. & L.M.Perry is a synonym of: Archidendron lucyi
- Archidendron ramiflorum
- Archidendron sogorense Baker f. is a synonym of: Archidendron lucyi
- Archidendron vaillantii
- Archidendron vaillantii var. pentzkeana Ewart is a synonym of: Archidendron ramiflorum
- Archidendron whitei
- Archidendropsis thozetiana
- Archidendropsis xanthoxylon
- Archirhodomyrtus beckleri
- Archontophoenix alexandrae
- Archontophoenix cunninghamiana
- Archontophoenix jardinei F.M.Bailey is a synonym of: Ptychosperma elegans
- Archontophoenix maxima
- Archontophoenix myolensis
- Archontophoenix purpurea
- Archontophoenix tuckeri
- Ardisia bifaria C.T.White & W.D.Francis is a synonym of: Tetrardisia bifaria
- Ardisia brevipedata
- Ardisia brevipedata var. depauperata Domin is a synonym of: Ardisia hylandii
- Ardisia crenata
- Ardisia depauperata (Domin) Jackes is a synonym of: Ardisia hylandii
- Ardisia elliptica
- Ardisia fasciculata
- Ardisia humilis Vahl is a synonym of: Ardisia elliptica
- Ardisia hylandii
- Ardisia pachyrrhachis
- Ardisia pseudojambosa F.Muell. is a synonym of: Tapeinosperma pseudojambosa
- Ardisia solanacea Roxb. is a synonym of: Ardisia elliptica
- Ardisia sp. Mountain Ardisia (BH 8778) is a synonym of: Ardisia hylandii
- Ardisia sp. South Mary LA (B.P.Hyland 8778) is a synonym of: Ardisia hylandii
- Arduina laxiflora (Benth.) K.Schum. is a synonym of: Carissa laxiflora
- Areca appendiculata F.M.Bailey is a synonym of: Oraniopsis appendiculata
- Areca minor W.Hill is a synonym of: Linospadix minor
- Areca normanbyi (W.Hill) F.Muell. is a synonym of: Normanbya normanbyi
- Arenga australasica
- Arenga gracilicaulis F.M.Bailey is a synonym of: Arenga microcarpa
- Arenga microcarpa
- Argophyllum cryptophlebum
- Argophyllum curtum
- Argophyllum ferrugineum
- Argophyllum heterodontum
- Argophyllum iridescens
- Argophyllum jagonis
- Argophyllum lejourdanii
- Argophyllum lejourdanii F.Muell. var. lejourdanii is a synonym of: Argophyllum lejourdanii
- Argophyllum lejourdanii var. cryptophlebum F.M.Bailey is a synonym of: Argophyllum heterodontum
- Argophyllum loxotrichum
- Argophyllum nitidum var. fulvum F.M.Bailey is a synonym of: Argophyllum cryptophlebum
- Argophyllum nitidum var. nullumense (R.T.Baker) Ewart, Jean White & B.Rees is a synonym of: Argophyllum nullumense
- Argophyllum nullumense
- Argophyllum_sp__Babinda_L_S.Smith_10213.htm is a synonym of: Argophyllum jagonis
- Argophyllum sp. Boulders (B.Gray 6326) is a synonym of: Argophyllum jagonis
- Argophyllum_sp__Koolmoon_Creek_B.Gray_1040 is a synonym of: Argophyllum ferrugineum
- Argophyllum verae
- Argusia argentea (L. f.) Heine is a synonym of: Heliotropium foertherianum
- Argyreia nervosa
- Argyreia queenslandica Domin is a synonym of: Stictocardia queenslandica
- Argyreia soutteri (Bailey) Domin is a synonym of: Decalobanthus peltatus
- Argyreia speciosa (L.f.) Sweet is a synonym of: Argyreia nervosa
- Argyrodendron actinophyllum subsp. diversifolium
- Argyrodendron peralatum
- Argyrodendron polyandrum
- Argyrodendron sp. Boonjee (B.Hyland 2139RFK)
- Argyrodendron sp. Mt Haig ( L.S.Smith 14307)
- Argyrodendron sp. Penta Tulip Oak (B.Hyland 2565RFK)
- Argyrodendron sp. Whitsundays (W.J.McDonald+ 5831)
- Argyrodendron sp. Whyanbeel (B.Hyland 1106RFK)
- Argyrodendron trifoliolatum
- Argyrodendron trifoliolatum F.Muell. var. trifoliolatum is a synonym of: Argyrodendron trifoliolatum
- Argyrodendron trifoliolatum var. peralatum (Bailey) Burtt Davey is a synonym of: Argyrodendron peralatum
- Aristega husemannii F. Muell. is a synonym of: Carronia protensa
- Aristida dissimilis S.T.Blake is a synonym of: Aristida queenslandica var. dissimilis
- Aristida exserta
- Aristida queenslandica var. dissimilis
- Aristida superpendens
- Aristolochia sp. (Iron Range rainforest) is a synonym of: Aristolochia peninsulensis
- Aristolochia acuminata
- Aristolochia australopithecurus
- Aristolochia baueri Duch. is a synonym of: Aristolochia thozetii
- Aristolochia chalmersii
- Aristolochia deltantha
- Aristolochia deltantha F.Muell. var. deltantha is a synonym of: Aristolochia deltantha
- Aristolochia elegans
- Aristolochia indica
- Aristolochia indica var. magna Benth. is a synonym of: Aristolochia acuminata
- Aristolochia nauseifolia M.J.Parsons is a synonym of: Aristolochia thozetii
- Aristolochia peninsulensis
- Aristolochia praevenosa
- Aristolochia pubera R.Br. is a synonym of: Aristolochia pubera var. pubera
- Aristolochia pubera var. pubera
- Aristolochia pubera var. (Mt Mulligan J.R.Clarkson 5246) is a synonym of: Aristolochia pubera var. aromatica
- Aristolochia pubera var. aromatica
- Aristolochia sp. (Bartle Frere) is a synonym of: Aristolochia australopithecurus
- Aristolochia sp. (Lamond Hill G. Sankowsky + 382) is a synonym of: Aristolochia peninsulensis
- Aristolochia sp. (Mt Lewis) is a synonym of: Aristolochia sparusifolia
- Aristolochia sp. (Mt Lewis) is a synonym of: Gunnessia pepo
- Aristolochia sp. (Mt White) is a synonym of: Aristolochia chalmersii
- Aristolochia sp. (Woopen Creek, G. Sankowsky 586 & N. Sankowsky is a synonym of: Aristolochia australopithecurus
- Aristolochia sp. (Woopen Creek, G. Sankowsky 586 & N. Sankowsky is a synonym of: Aristolochia australopithecurus
- Aristolochia sp. Iron Range (G. Sankowsky 382 et al.) is a synonym of: Aristolochia peninsulensis
- Aristolochia sparusifolia
- Aristolochia strictiflora Duch. is a synonym of: Aristolochia pubera var. pubera
- Aristolochia tagala Cham. is a synonym of: Aristolochia acuminata
- Aristolochia thozetii
- Aristotelia megalosperma F.Muell. is a synonym of: Aceratium megalospermum
- Aristotelia pubescens C.T.White is a synonym of: Aceratium concinnum
- Aristotelia trilocularis F.M.Bailey is a synonym of: Aceratium megalospermum
- Artabotrys carnosipetalus
- Artabotrys sp. (Claudie River BG 3240) is a synonym of: Artabotrys carnosipetalus
- Artanema fimbriatum
- Arthragrostis deschampsioides
- Arthrostylis aphylla
- Artocarpus glaucus
- Artocarpus heterophyllus
- Arum esculentum L. is a synonym of: Colocasia esculenta
- Arum flagelliforme Lodd., G.Lodd. & W.Lodd. is a synonym of: Typhonium flagelliforme
- Arum viviparum Roxb. is a synonym of: Remusatia vivipara
- Arundarbor tenuis nigra Rumph. is a synonym of: Neololeba atra
- Arundinaria cobonii F.M.Bailey is a synonym of: Neololeba atra
- Arundinella nepalensis
- Arundo karka Retz. is a synonym of: Phragmites karka
- Arytera bifoliolata
- Arytera divaricata
- Arytera exostemonea Domin is a synonym of: Arytera divaricata
- Arytera lautereriana (Bailey) Radlk. is a synonym of: Mischarytera lautereriana
- Arytera macrobotrys (Merr. & L.M.Perry) R.W.Ham is a synonym of: Mischarytera macrobotrys
- Arytera oshanesiana (F.Muell.) Radlk. is a synonym of: Arytera divaricata
- Arytera pauciflora
- Arytera pseudofoveolata
- Arytera sp. Dryander Creek (P.R.Sharpe 4184)
- Arytera subnitida C.T.White is a synonym of: Mischocarpus exangulatus
- Asarina erubescens (D.Don) Pennell is a synonym of: Lophospermum erubescens
- Asclepias curassavica
- Asclepias physocarpa (E.Mey.) Schltr. is a synonym of: Gomphocarpus physocarpus
- Asclepias procera Aiton is a synonym of: Calotropis procera
- Asclepias sussuela Roxb. is a synonym of: Hoya sussuela
- Asparagus acerosus Roxb. is a synonym of: Asparagus racemosus
- Asparagus aethiopicus ‘Sprengeri’ is a synonym of: Asparagus aethiopicus
- Asparagus aethiopicus
- Asparagus fasciculatus R.Br. is a synonym of: Asparagus racemosus
- Asparagus plumosus
- Asparagus racemosus
- Asparagus sprengeri Regel is a synonym of: Asparagus aethiopicus
- Asparagus terminalis L. is a synonym of: Cordyline fruticosa
- Aspidixia articulata (Burm. f.) Tieghem is a synonym of: Viscum articulatum
- Asteromyrtus angustifolia
- Asteromyrtus brassii
- Asteromyrtus gaertneri Schauer is a synonym of: Asteromyrtus angustifolia
- Asystasia australasica
- Asystasia sp. Font Hills (B.Gray 8039) is a synonym of: Asystasia sp. Newcastle Bay (L.J.Brass 18671)
- Asystasia sp. Newcastle Bay (L.J.Brass 18671)
- Atalantia recurva Benth. is a synonym of: Luvunga monophylla
- Atalantia trimera Oliver is a synonym of: Luvunga monophylla
- Atalaya angustifolia
- Atalaya australiana
- Atalaya australis (A.Rich.) F.Muell. is a synonym of: Atalaya salicifolia
- Atalaya calcicola
- Atalaya hemiglauca
- Atalaya multiflora
- Atalaya rigida
- Atalaya salicifolia
- Atalaya salicifolia var. intermedia C.A.Gardner is a synonym of: Atalaya salicifolia
- Atalaya sericopetala
- Atalaya variifolia
- Atalaya virens C.T.White is a synonym of: Atalaya salicifolia
- Atherosperma repandulum F.Muell. is a synonym of: Daphnandra repandula
- Athertonia diversifolia
- Atractocarpus fitzalanii subsp. fitzalanii
- Atractocarpus fitzalanii subsp. tenuipes
- Atractocarpus hirtus
- Atractocarpus merikin
- Atractocarpus sessilis
- Atropa physalodes L. is a synonym of: Nicandra physalodes
- Auranticarpa edentata
- Auranticarpa ilicifolia
- Auranticarpa papyracea
- Auranticarpa rhombifolia
- Austrobaileya maculata C.T.White is a synonym of: Austrobaileya scandens
- Austrobaileya scandens
- Austrobuxus megacarpus
- Austrobuxus nitidus Miq. is a synonym of: Austrobuxus megacarpus
- Austrocallerya australis
- Austromatthaea elegans
- Austromuellera trinervia
- Austromuellera valida
- Austromyrtus bidwillii (Bentham) Burret is a synonym of: Gossia bidwillii
- Austromyrtus dallachiana (Benth.) L.S.Sm. is a synonym of: Gossia dallachiana
- Austromyrtus exaltata (F.M.Bailey) Burrett is a synonym of: Syzygium luehmannii
- Austromyrtus floribunda (A.J.Scott) Guymer is a synonym of: Gossia floribunda
- Austromyrtus hillii (Benth.) Burret is a synonym of: Gossia hillii
- Austromyrtus lasioclada (F.Muell.) L.S.Sm. is a synonym of: Lenwebbia lasioclada
- Austromyrtus lucida (Banks ex Gaertner) L.S. Smith is a synonym of: Gossia lucida
- Austromyrtus metrosideros (Bailey) Burret is a synonym of: Uromyrtus metrosideros
- Austromyrtus minutiflora Burret is a synonym of: Gossia myrsinocarpa
- Austromyrtus opaca (C.T. White) L.S. Smith is a synonym of: Gossia hillii
- Austromyrtus pubiflora (C.T.White) L.S.Sm. is a synonym of: Gossia pubiflora
- Austromyrtus racemulosa Burret is a synonym of: Gossia bidwillii
- Austromyrtus shepherdii (F. Mueller) L.S. Smith is a synonym of: Gossia shepherdii
- Austromyrtus sp. (Annan River BH 25539RFK) is a synonym of: Gossia lucida
- Austromyrtus sp. (Bamaga BH 10235) is a synonym of: Gossia bamagensis
- Austromyrtus sp. (Byerstown Range GPG 2037) is a synonym of: Gossia sankowskyorum
- Austromyrtus sp. (Cape Flattery LJW 13537) is a synonym of: Gossia retusa
- Austromyrtus sp. (Forty Mile Scrub GCS 1785) is a synonym of: Gossia bidwillii
- Austromyrtus sp. (McIlwraith Range BH 11148) is a synonym of: Gossia macilwraithensis
- Austromyrtus sp. (Mt Lewis BG 831) is a synonym of: Gossia lewisensis
- Austromyrtus sp. (Windsor Tableland BG 412) is a synonym of: Gossia shepherdii
- Austromyrtus sp. Gillies (BG 1484) is a synonym of: Gossia grayi
- Austromyrtus sp. Leo Creek (BG 5244) is a synonym of: Gossia grayi
- Austrosteenisia blackii
- Austrosteenisia mollitricha
- Austrosteenisia stipularis
- Axonopus affinis Chase is a synonym of: Axonopus fissifolius
- Axonopus compressus
- Axonopus fissifolius
- Azanza thespesioides
B
- Backhousea floribunda A.J.Scott is a synonym of: Gossia floribunda
- Backhousia angustifolia
- Backhousia bancroftii
- Backhousia citriodora
- Backhousia enata
- Backhousia gundarara
- Backhousia hughesii
- Backhousia kingii
- Backhousia sp. Prince Regent (W.O'Sullivan & D.Dureau WODD 42) is a synonym of: Backhousia gundarara
- Backhousia sp. Tully River (A.Ford 3780) is a synonym of: Backhousia enata
- Backhousia tetraptera
- Bacopa procumbens (Mill.) Greenm. is a synonym of: Mecardonia procumbens
- Bacularia aequisegmentosa Domin is a synonym of: Linospadix palmerianus
- Bacularia intermedia C.T.White is a synonym of: Linospadix minor
- Bacularia microcarya Domin is a synonym of: Linospadix microcaryus
- Bacularia minor (W.Hill) F.Muell. is a synonym of: Linospadix minor
- Bacularia palmeriana F.M.Bailey is a synonym of: Linospadix palmerianus
- Bacularia sessifolia var. multisecta Becc. is a synonym of: Linospadix microcaryus
- Bacularia sessilifolia Becc. ex Martelli is a synonym of: Linospadix microcaryus
- Baileyoxylon lanceolatum
- Balanophora fungosa f. extratropica F.M.Bailey is a synonym of: Balanophora fungosa subsp. fungosa
- Balanophora fungosa J.R.Forst. & G.Forst. is a synonym of: Balanophora fungosa subsp. fungosa
- Balanophora fungosa subsp. fungosa
- Balanophora fungosa J.R.Forst. & G.Forst. var. fungosa is a synonym of: Balanophora fungosa subsp. fungosa
- Balanophora fungosa subsp. indica
- Balanophora fungosa var. indica (Arn.) B.Hansen is a synonym of: Balanophora fungosa subsp. indica
- Balanops australiana
- Balanops montana C.T.White is a synonym of: Balanops australiana
- Balfouria saligna R.Br. is a synonym of: Wrightia saligna
- Ballota suaveolens L. is a synonym of: Mesosphaerum suaveolens
- Baloghia inophylla
- Baloghia lucida Endl. is a synonym of: Baloghia inophylla
- Baloghia parviflora
- Bambusa atra Lindl. is a synonym of: Neololeba atra
- Bambusa forbesii (Ridl.) Holttum is a synonym of: Neololeba atra
- Bambusa lineata Munro is a synonym of: Neololeba atra
- Bambusa moreheadiana F.M.Bailey is a synonym of: Mullerochloa moreheadiana
- Bambusa moreheadiana F.M.Bailey is a synonym of: Mullerochloa moreheadiana
- Banisteria benghalensis L. is a synonym of: Hiptage benghalensis
- Banisteria timoriensis DC. is a synonym of: Stigmaphyllon timoriense
- Banksia aquilonia
- Banksia compar R.Br. is a synonym of: Banksia integrifolia subsp. compar
- Banksia integrifolia subsp. compar
- Banksia integrifolia var. aquilonia A.S.George is a synonym of: Banksia aquilonia
- Banksia integrifolia var. compar (R.Br.) F.M.Bailey is a synonym of: Banksia integrifolia subsp. compar
- Banksia leptostachya (Benth.) Kuntze is a synonym of: Pimelea sericostachya
- Banksia sericostachya (F.Muell.) Kuntze is a synonym of: Pimelea sericostachya
- Baobab gregorii (F.Muell.) Kuntze is a synonym of: Adansonia gregorii
- Barleria cristata
- Barleria strigosa
- Barongia lophandra
- Barringtonia acutangula (L.) Gaertn. is a synonym of: Barringtonia acutangula subsp. acutangula
- Barringtonia acutangula subsp. acutangula
- Barringtonia arborea (Roxb.) F.Muell. is a synonym of: Planchonia careya
- Barringtonia asiatica
- Barringtonia australis Ewart & O.B.Davies is a synonym of: Planchonia careya
- Barringtonia calyptrata
- Barringtonia careya F.Muell. is a synonym of: Planchonia careya
- Barringtonia coccinea (Lour.) Kostel. is a synonym of: Barringtonia acutangula subsp. acutangula
- Barringtonia denticulata (Miers) R.Knuth is a synonym of: Barringtonia acutangula subsp. acutangula
- Barringtonia edulis Seem. is a synonym of: Barringtonia calyptrata
- Barringtonia gracilis (Miers) R.Knuth is a synonym of: Barringtonia acutangula subsp. acutangula
- Barringtonia longiracemosa C.T.White is a synonym of: Barringtonia racemosa
- Barringtonia racemosa
- Barringtonia speciosa J.R.Forst. & G.Forst. is a synonym of: Barringtonia asiatica
- Barringtonia sphaerocarpa C.A.Gardner is a synonym of: Elaeodendron melanocarpum
- Basilicum polystachyon
- Bassia galactoxyla F.Muell. is a synonym of: Palaquium galactoxylon
- Batatas paniculata (L.) Choisy is a synonym of: Ipomoea mauritiana
- Bauerella simplicifolia (Endl.) T.G.Hartley is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Bauerella simplicifolia (Endl.) T.G.Hartley subsp. simplicifolia is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Bauhinia acida Reinw. ex Korth. is a synonym of: Bauhinia malabarica
- Bauhinia binata
- Bauhinia cunninghamii
- Bauhinia cunninghamii (Benth.) Benth. f. cunninghamii is a synonym of: Bauhinia cunninghamii
- Bauhinia gilesii F.Muell. & F.M.Bailey is a synonym of: Bauhinia malabarica
- Bauhinia hawkesiana F.M.Bailey is a synonym of: Bauhinia malabarica
- Bauhinia hookeri
- Bauhinia hookeri F.Muell. var. hookeri is a synonym of: Bauhinia hookeri
- Bauhinia hookeri var. broomensis Hochr. is a synonym of: Bauhinia cunninghamii
- Bauhinia hookeri var. puberula Benth. is a synonym of: Bauhinia binata
- Bauhinia leichhardtii F.Muell. is a synonym of: Bauhinia cunninghamii
- Bauhinia leichhardtii F.Muell. var. leichhardtii is a synonym of: Bauhinia cunninghamii
- Bauhinia malabarica
- Bauhinia monandra
- Bauhinia persiehii F.Muell. is a synonym of: Bauhinia monandra
- Beccariella brownlessiana (F.Muell.) Swenson, Bartish & Munzinger is a synonym of: Pleioluma brownlessiana
- Beccariella chartacea (Benth.) Aubrev. is a synonym of: Planchonella chartacea
- Beccariella laurifolia (A.Rich.) Aubrev. is a synonym of: Pleioluma laurifolia
- Beccariella macrocarpa (P.Royen) Swenson, Bartish & Munzinger is a synonym of: Pleioluma macrocarpa
- Beccariella papyracea (P.Royen) Aubrev. is a synonym of: Pleioluma papyracea
- Beccariella queenslandica (P.Royen) Aubrev. is a synonym of: Pleioluma queenslandica
- Beccariella singuliflora (C.T.White & W.D.Francis) Swenson, Bartish & Munzinger is a synonym of: Pleioluma singuliflora
- Beccariella xerocarpa (Benth.) Aubrev. is a synonym of: Pleioluma xerocarpa
- Begonia hirtella
- Beilschmiedia bancroftii
- Beilschmiedia brunnea
- Beilschmiedia castrisinensis
- Beilschmiedia collina
- Beilschmiedia lachnostemonea F.Muell. is a synonym of: Beilschmiedia bancroftii
- Beilschmiedia obtusifolia
- Beilschmiedia oligandra
- Beilschmiedia peninsularis
- Beilschmiedia recurva
- Beilschmiedia tooram
- Beilschmiedia volckii
- Benstonea lauterbachii
- Benstonea monticola
- Berrya javanica
- Berrya quinquelocularis Tysm. & Binnend. ex Koord. & Valet. is a synonym of: Berrya javanica
- Bertya polystigma
- Betchea australiensis Schltr. is a synonym of: Ackama australiensis
- Beyeria tristigma F.Muell. is a synonym of: Shonia tristigma subsp. borealis
- Biancaea decapetala
- Biasolettia nymphaeifolia Presl is a synonym of: Hernandia nymphaeifolia
- Bidaria leptophylla F.Muell. is a synonym of: Marsdenia viridiflora
- Bidens alba var. radiata
- Bidens bipinnata
- Bidens pilosa f. radiata Sch.Bip. is a synonym of: Bidens alba var. radiata
- Bidens pilosa
- Bidens pilosa var. typica Domin is a synonym of: Bidens pilosa
- Bidens subalternans
- Bifaria rubra Tieghem is a synonym of: Korthalsella rubra subsp. rubra
- Bignonia australis (R.Br.) R.Br. is a synonym of: Pandorea pandorana
- Bignonia meonantha Link is a synonym of: Pandorea pandorana
- Bignonia pandorae Ker Gawl. is a synonym of: Pandorea pandorana
- Bignonia pandorana Andrews is a synonym of: Pandorea pandorana
- Bignonia pandorea Vent. is a synonym of: Pandorea pandorana
- Bignonia spathacea L.f. is a synonym of: Dolichandrone spathacea
- Bignonia unguis-cati L. is a synonym of: Macfadyena unguis-cati
- Biophytum petersianum
- Bischofia javanica
- Blackwellia brachybotrys F.Muell. is a synonym of: Homalium brachybotrys
- Bladhia brevipedata (F.Muell.) F.Muell. is a synonym of: Ardisia brevipedata
- Bladhia pachyrrhachis F.Muell. is a synonym of: Ardisia pachyrrhachis
- Blainvillea cunninghamii
- Blainvillea dubia Specht is a synonym of: Blainvillea cunninghamii
- Bleasdalea bleasdalei
- Bleasdalea cupanioides Domin is a synonym of: Bleasdalea bleasdalei
- Bleekeria calocarpa Hassk. is a synonym of: Ochrosia elliptica
- Bleekeria minima (Markgr.) Merr. & L.M.Perry is a synonym of: Ochrosia minima
- Blepharocarya involucrigera
- Blumea riparia
- Blumea sylvatica
- Bobea myrtoides
- Bobea putaminosa (F.Muell.) F.Muell. is a synonym of: Antirhea putaminosa
- Boea hygroscopica
- Boea hygroscopica F.Muell. var. hygroscopica is a synonym of: Boea hygroscopica
- Boea hygroscopica var. bellendenkerensis Domin is a synonym of: Boea hygroscopica
- Boea hygroscopica var. typica Domin is a synonym of: Boea hygroscopica
- Boea kinnearii
- Boehmeria propinqua Decne. is a synonym of: Pipturus argenteus
- Boerhavia dominii
- Bombax ceiba L. is a synonym of: Bombax ceiba var. leiocarpum
- Bombax ceiba var. ceiba A.Robyns is a synonym of: Adansonia gregorii
- Bombax ceiba var. leiocarpum
- Bombax malabaricum DC. is a synonym of: Adansonia gregorii
- Bonamia dietrichiana
- Bonduc majus Medik. is a synonym of: Caesalpinia major
- Borago zeylanica Burm. f. is a synonym of: Trichodesma zeylanicum
- Boronia alulata
- Boronia excelsa
- Boronia lanceolata
- Borreria exilis L.O.Williams is a synonym of: Spermacoce exilis
- Borreria gracilis L.O.Williams is a synonym of: Spermacoce exilis
- Borreria membranacea (Benth.) Specht is a synonym of: Spermacoce membranacea
- Borreria remota (Lam.) Bacigalupo & E.L.Cabral is a synonym of: Spermacoce remota
- Bosistoa brassii T.G.Hartley is a synonym of: Bosistoa medicinalis
- Bosistoa brassii T.G.Hartley var. brassii is a synonym of: Bosistoa medicinalis
- Bosistoa brassii var. proserpinensis T.G.Hartley is a synonym of: Bosistoa medicinalis
- Bosistoa connaricarpa Domin is a synonym of: Bosistoa pentacocca
- Bosistoa medicinalis
- Bosistoa pentacocca
- Bosistoa pentacocca (F.Muell.) Baill. var. pentacocca is a synonym of: Bosistoa pentacocca
- Bosistoa pentacocca var. connaricarpa (Domin) T.G.Hartley is a synonym of: Bosistoa pentacocca
- Bosistoa pentacocca var. dryanderensis T.G.Hartley is a synonym of: Bosistoa pentacocca
- Bossiaea arenicola
- Bothriochloa pertusa
- Bouchardatia neurococca
- Boussingaultia cordifolia Ten. is a synonym of: Anredera cordifolia
- Bowenia serrulata
- Bowenia spectabilis
- Bowenia spectabilis Hook.f. var. spectabilis is a synonym of: Bowenia spectabilis
- Bowenia spectabilis var. serrata F.M.Bailey is a synonym of: Bowenia serrulata
- Bowenia spectabilis var. serrulata Andre is a synonym of: Bowenia serrulata
- Bowenia spectabilis var. serrulata Anon. is a synonym of: Bowenia serrulata
- Bowenia spectabilis var. serrulata W.Bull is a synonym of: Bowenia serrulata
- Brachiaria pubigera (Roem. & Schult.) S.T.Blake is a synonym of: Urochloa pubigera
- Brachiaria reptans (L.) C.A.Gardner & C.E.Hubb. is a synonym of: Urochloa reptans
- Brachiaria subquadripara (Trin.) Hitchc. is a synonym of: Urochloa subquadripara
- Brachychiton acerifolius
- Brachychiton acerifolius Macarthur & C.Moore is a synonym of: Brachychiton acerifolius
- Brachychiton acerifolius Macarthur & C.Moore var. acerifolius is a synonym of: Brachychiton acerifolius
- Brachychiton acerifolius var. typicum Terrac. is a synonym of: Brachychiton acerifolius
- Brachychiton albidus
- Brachychiton australis
- Brachychiton australis (Schott & Endl.) Terrac. var. australis is a synonym of: Brachychiton australis
- Brachychiton australis var. typicum Terrac. is a synonym of: Brachychiton australis
- Brachychiton bidwillii
- Brachychiton chillagoensis
- Brachychiton compactus
- Brachychiton discolor
- Brachychiton diversifolius R.Br. is a synonym of: Brachychiton diversifolius subsp. diversifolius
- Brachychiton diversifolius subsp. diversifolius
- Brachychiton diversifolius var. caudatus (Benth.) Terrac. is a synonym of: Brachychiton diversifolius subsp. diversifolius
- Brachychiton garrawayae
- Brachychiton grandiflorus
- Brachychiton paradoxus
- Brachychiton platanoides R.Br. is a synonym of: Brachychiton australis
- Brachychiton populneus (Schott & Endl.) R.Br. is a synonym of: Brachychiton diversifolius subsp. diversifolius
- Brachychiton ramiflorus R.Br. is a synonym of: Brachychiton paradoxus
- Brachychiton rupestris
- Brachychiton trichosiphon (Benth.) Ewart & O.B.Davies is a synonym of: Brachychiton australis
- Brachychiton tridentatus
- Brachychiton velutinosus
- Brachychiton viridiflorus
- Brachychiton xanthophyllus
- Brachynema ornans F.Muell. is a synonym of: Abrophyllum ornans
- Brackenridgea australiana
- Brackenridgea nitida A.Gray is a synonym of: Brackenridgea australiana
- Brackenridgea nitida subsp. australiana (F.Muell.) Kanis is a synonym of: Brackenridgea australiana
- Bradleia philippica Cav. is a synonym of: Glochidion philippicum
- Brassaia actinophora Endl. is a synonym of: Schefflera actinophylla
- Brassaia actinophylla Endl. is a synonym of: Schefflera actinophylla
- Brassiantha hedraiantheroides
- Breynia cernua
- Breynia macrantha
- Breynia oblongifolia
- Breynia oblongifolia (Mull.Arg.) Mull.Arg. var. oblongifolia is a synonym of: Breynia oblongifolia
- Breynia sp. Black Mountain (B.Hyland 25658RFK)
- Breynia stipitata
- Bridelia faginea (Baill.) Benth. is a synonym of: Bridelia leichhardtii
- Bridelia insulana
- Bridelia leichhardtii
- Bridelia leichhardtii Mull.Arg. var. leichhardtii is a synonym of: Bridelia leichhardtii
- Bridelia leichhardtii var. glabrata Domin is a synonym of: Bridelia leichhardtii
- Bridelia melanthesioides var. australiensis Gehrm. is a synonym of: Bridelia leichhardtii
- Bridelia phyllanthoides W.Fitzg. is a synonym of: Bridelia tomentosa
- Bridelia tomentosa
- Bridelia tomentosa Blume var. tomentosa is a synonym of: Bridelia tomentosa
- Bridelia tomentosa var. eriantha Airy Shaw is a synonym of: Bridelia tomentosa
- Bridelia tomentosa var. glabrifolia (Merr.) Airy Shaw is a synonym of: Bridelia tomentosa
- Bridelia tomentosa var. ovoidea Benth. is a synonym of: Bridelia tomentosa
- Bridelia tomentosa var. trichadenia Mull.Arg. is a synonym of: Bridelia tomentosa
- Briedelia minutiflora Hook.f. is a synonym of: Bridelia insulana
- Briedelia penangiana Hook.f. is a synonym of: Bridelia insulana
- Brillantaisia lamium
- Brombya platynema
- Brombya smithii
- Brombya sp. Gap Creek (L.S.Smith 11116) is a synonym of: Brombya smithii
- Brucea amarissima (Lour.) Merr. is a synonym of: Brucea javanica
- Brucea javanica
- Brucea sumatrana Roxb. is a synonym of: Brucea javanica
- Bryantea dealbata (R.Br.) Raf. is a synonym of: Neolitsea dealbata
- Bryonia althaeoides Ser. is a synonym of: Cucumis althaeoides
- Bryonia laciniosa L. is a synonym of: Diplocyclos palmatus
- Bryonia palmata L. is a synonym of: Diplocyclos palmatus
- Bryonopsis erythrocarpa (F.Muell.) Naudin is a synonym of: Diplocyclos palmatus
- Bryonopsis laciniosa (L.) Naudin is a synonym of: Diplocyclos palmatus
- Bryonopsis laciniosa (L.) Naudin var. laciniosa is a synonym of: Diplocyclos palmatus
- Bryonopsis laciniosa var. erythrocarpa (F.Muell.) Naudin is a synonym of: Diplocyclos palmatus
- Bryonopsis laciniosa var. typica Domin is a synonym of: Diplocyclos palmatus
- Bryophyllum pinnatum
- Bubbia queenslandiana subsp. australis
- Bubbia queenslandiana Vink is a synonym of: Bubbia queenslandiana subsp. queenslandiana
- Bubbia queenslandiana subsp. queenslandiana
- Bubbia semecarpoides
- Bubbia semecarpoides (F.Muell.) B.L.Burtt var. semecarpoides is a synonym of: Bubbia semecarpoides
- Bubbia semecarpoides var. whiteana Vink is a synonym of: Bubbia whiteana
- Bubbia whiteana
- Buchanania arborescens
- Buchanania mangoides
- Buchanania muelleri Engl. is a synonym of: Buchanania obovata
- Buchanania muelleri Engl. var. muelleri is a synonym of: Buchanania obovata
- Buchanania muelleri var. pilosa Engl. is a synonym of: Buchanania obovata
- Buchanania oblongifolia W.Fitzg. is a synonym of: Buchanania obovata
- Buchanania obovata
- Buckinghamia celsissima
- Buckinghamia ferruginiflora
- Bulbostylis barbata
- Bulweria nobilissima F.Muell. is a synonym of: Deplanchea tetraphylla
- Bureavella unmackiana (Bailey) Aubrev. is a synonym of: Sersalisia unmackiana
- Bureavella xylocarpa (C.T.White) Aubrev. is a synonym of: Planchonella xylocarpa
- Bursaria incana
- Bursaria incana Lindl. var. incana is a synonym of: Bursaria incana
- Bursaria incana var. septentrionalis E.M.Benn. is a synonym of: Bursaria incana
- Bursaria pantonii Guilf. is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa Cav. is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa Cav. f. spinosa is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa subsp. spinosa
- Bursaria spinosa Cav. var. spinosa is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa f. grandifolia Wawra is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa f. subspinosa Domin is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa var. australis E.M.Benn. is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa var. incana (Lindl.) F.Muell. ex Klatt is a synonym of: Bursaria incana
- Bursaria spinosa var. inernis Daveau is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa var. lanceolata E.M.Benn. is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa var. macrophylla Daveau is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa var. macrophylla Hook. is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa var. microphylla Ewart, B.Rees & B.Wood is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa var. normalis Domin is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria spinosa var. pantonii Ewart is a synonym of: Bursaria spinosa subsp. spinosa
- Bursaria tenuifolia
- Bursera australasica F.M.Bailey is a synonym of: Canarium australasicum
- Busbeckea arborea F.Muell. is a synonym of: Capparis arborea
- Busbeckea corymbiflora F.Muell. is a synonym of: Capparis lucida
- Busbeckea ornans F.Muell. is a synonym of: Capparis ornans
- Butonica calyptrata Miers is a synonym of: Barringtonia calyptrata
- Byronia arnhemensis F.Muell. is a synonym of: Ilex arnhemensis subsp. arnhemensis
C
- Cacalia sonchifolia L. is a synonym of: Emilia sonchifolia var. sonchifolia
- Cadaba capparoides
- Cadellia monostylis Benth. is a synonym of: Guilfoylia monostylis
- Cadellia monostylis Benth. var. monostylis is a synonym of: Guilfoylia monostylis
- Cadellia pentastylis
- Caesalpinia bonduc (L.) Roxb. is a synonym of: Guilandina bonduc
- Caesalpinia bonducella (L.) Roxb. is a synonym of: Guilandina bonduc
- Caesalpinia broomensis Hochr. is a synonym of: Caesalpinia major
- Caesalpinia crista
- Caesalpinia decapetala (Roth) Alston is a synonym of: Biancaea decapetala
- Caesalpinia erythrocarpa Pedley is a synonym of: Mezoneuron erythrocarpum
- Caesalpinia ferruginea Decne. is a synonym of: Peltophorum pterocarpum
- Caesalpinia hymenocarpa (Prain) Hattink is a synonym of: Mezoneuron hymenocarpum
- Caesalpinia inerme Roxb. is a synonym of: Peltophorum pterocarpum
- Caesalpinia major
- Caesalpinia nitens (F.Muell. ex Benth.) Pedley is a synonym of: Mezoneuron nitens
- Caesalpinia nuga (L.) W.T.Aiton is a synonym of: Caesalpinia crista
- Caesalpinia paniculata (Lam.) Roxb. is a synonym of: Caesalpinia crista
- Caesalpinia robusta
- Caesalpinia sepiaria Roxb. is a synonym of: Biancaea decapetala
- Caesalpinia traceyi Pedley is a synonym of: Mezoneuron scortechinii
- Cajanus acutifolius
- Cajanus reticulatus
- Caladium macrorrhizon (L.) R.Br. is a synonym of: Alocasia brisbanensis
- Calamus amischus Burret is a synonym of: Calamus australis
- Calamus aruensis
- Calamus australis
- Calamus caryotoides
- Calamus hollrungii Becc. is a synonym of: Calamus vitiensis
- Calamus hollrungii Becc. is a synonym of: Calamus aruensis
- Calamus jaboolum F.M.Bailey is a synonym of: Calamus australis
- Calamus latisectus Burret is a synonym of: Calamus aruensis
- Calamus moti
- Calamus obstruens F.Muell. is a synonym of: Calamus australis
- Calamus radicalis
- Calamus stipitatus Burret is a synonym of: Calamus vitiensis
- Calamus vanuatuensis Dowe is a synonym of: Calamus vitiensis
- Calamus vitiensis
- Calamus warburgii
- Calanthe triplicata
- Calanthe veratrifolia Ker Gawl. is a synonym of: Calanthe triplicata
- Calanthe veratrifolia var. australis Lindl. is a synonym of: Calanthe triplicata
- Calanthe veratrifolia var. australis Lindl. & Paxton is a synonym of: Calanthe triplicata
- Calanthe veratrifolia var. kennyi F.M.Bailey is a synonym of: Calanthe triplicata
- Calanthe veratrifolia var. stenochila Rchb.f. is a synonym of: Calanthe triplicata
- Caldcluvia australiensis (Schltr.) Hoogland is a synonym of: Ackama australiensis
- Caldcluvia paniculosa (F.Muell.) Hoogland is a synonym of: Ackama paniculosa
- Callerya australis (Endl.) Schot is a synonym of: Austrocallerya australis
- Callerya pilipes is a synonym of: Austrocallerya pilipes
- Callerya sp. Barratt Creek (G.Sankowsky 428) is a synonym of: Austrocallerya australis
- Callerya sp. Beatrice Creek (L.S.Smith 10487.htm is a synonym of: Ibatiria furfuracea
- Callerya sp. Beatrice River (L.S.Smith 10487.htm is a synonym of: Ibatiria furfuracea
- Calliandra saman (Jacq.) Griseb. is a synonym of: Samanea saman
- Callicarpa adenanthera R.Br. is a synonym of: Callicarpa candicans
- Callicarpa cana L. is a synonym of: Callicarpa candicans
- Callicarpa cana var. typica Bakh. is a synonym of: Callicarpa candicans
- Callicarpa candicans
- Callicarpa caudata
- Callicarpa longifolia
- Callicarpa pedunculata
- Callicarpa pedunculata R.Br. var. pedunculata is a synonym of: Callicarpa pedunculata
- Callicarpa pedunculata var. typica H.J.Lam is a synonym of: Callicarpa pedunculata
- Callicarpa viridis Domin is a synonym of: Callicarpa pedunculata
- Callicoma stutzeri f. glabrifolia Domin is a synonym of: Pullea stutzeri
- Callicoma stutzeri F.Muell. is a synonym of: Pullea stutzeri
- Callicoma stutzeri F.Muell. f. stutzeri is a synonym of: Pullea stutzeri
- Callicoma stutzeri F.Muell. var. stutzeri is a synonym of: Pullea stutzeri
- Callicoma stutzeri var. glabrifolia Domin is a synonym of: Pullea stutzeri
- Callicoma stutzeri var. subpubescens Domin is a synonym of: Pullea stutzeri
- Callistemon recurvus R.D.Spencer & Lumley is a synonym of: Melaleuca recurva
- Callistemon viminalis (Sol. ex Gaertner) G.Don ex Loudon is a synonym of: Melaleuca viminalis
- Callitriche macropteryx Hegelm. is a synonym of: Callitriche muelleri
- Callitriche muelleri
- Callitris intratropica
- Callitris macleayana
- Callitris parlatorei F.Muell. is a synonym of: Callitris macleayana
- Callitris robusta var. intratropica Ewart & O.B.Davies is a synonym of: Callitris intratropica
- Callitris robusta var. microcarpa F.M.Bailey is a synonym of: Callitris intratropica
- Calodracon terminalis (L.) Planch. is a synonym of: Cordyline fruticosa
- Calonyction mollissimum Zoll. is a synonym of: Ipomoea aculeata
- Calophanoides hygrophiloides (F.Muell.) R.M.Barker is a synonym of: Harnieria hygrophiloides
- Calophyllum australianum
- Calophyllum bicolor
- Calophyllum costatum
- Calophyllum inophyllum
- Calophyllum kiong Lauterb. & K.Schum., is a synonym of: Calophyllum soulattri
- Calophyllum ramiflorum O.Schwarz is a synonym of: Calophyllum sil
- Calophyllum sil
- Calophyllum soulattri
- Calophyllum touriga C.T.White & W.D.Francis is a synonym of: Mammea touriga
- Calopogonium mucunoides
- Calotropis procera
- Calycanthus australiensis Diels is a synonym of: Idiospermum australiense
- Calyptocarpus vialis
- Calyptrocalyx australasicus Scheff. is a synonym of: Laccospadix australasicus
- Calystegia affinis Endl. is a synonym of: Ipomoea littoralis
- Camellia sinensis
- Camonea pilosa
- Campylopora australiana (F.Muell.) Tiegh. is a synonym of: Brackenridgea australiana
- Cananga odorata
- Canarium acutifolium
- Canarium australasicum
- Canarium australasicum Benth. is a synonym of: Canarium australianum
- Canarium australianum
- Canarium australianum F.Muell. var. australianum is a synonym of: Canarium australianum
- Canarium baileyanum Leenh. is a synonym of: Canarium australasicum
- Canarium muelleri
- Canarium vitiense
- Canavalia cathartica
- Canavalia maritima Thouars is a synonym of: Canavalia rosea
- Canavalia obtusifolia (Lam.) DC. is a synonym of: Canavalia rosea
- Canavalia papuana
- Canavalia rosea
- Canna indica
- Canscora diffusa
- Cansjera leptostachya
- Cansjera rheedii J.F.Gmel. is a synonym of: Cansjera leptostachya
- Cansjera scandens Roxb. is a synonym of: Cansjera leptostachya
- Canthium attenuatum R.Br. ex Benth. is a synonym of: Psydrax attenuata
- Canthium coprosmoides F.Muell. is a synonym of: Cyclophyllum coprosmoides
- Canthium coprosmoides F.Muell. is a synonym of: Cyclophyllum rostellatum
- Canthium costatum C.T.White is a synonym of: Cyclophyllum costatum
- Canthium graciliflorum Merr. & L.M.Perry is a synonym of: Psydrax graciliflora
- Canthium odoratum (G.Forst.) Seem. is a synonym of: Psydrax odorata f. foveolata
- Canthium schultzii (O.Schwarz) Chippend. is a synonym of: Cyclophyllum schultzii
- Canthium sp. (Cape Wirawawoi) is a synonym of: Psydrax odorata subsp. arnhemica
- Canthium sp. (Friday Island LJB 18158) is a synonym of: Psydrax banksii
- Canthium sp. (Herberton Range SFK 1377) is a synonym of: Psydrax laxiflorens
- Canthium sp. (Kimberley BH 25133RFK) is a synonym of: Psydrax odorata subsp. arnhemica
- Canthium sp. Mt Rose (A.R. Bean 1978) is a synonym of: Cyclophyllum rostellatum
- Canthium sp. Whitfield Range (B.Hyland 1020RFK) is a synonym of: Psydrax tropica
- Canthium vacciniifolium F.Muell. is a synonym of: Everistia vacciniifolia var. vacciniifolia
- Capparis arborea
- Capparis batianoffii
- Capparis elliptica F.Muell. is a synonym of: Capparis lanceolaris
- Capparis jacobsii
- Capparis lanceolaris
- Capparis lasiantha DC. var. lasiantha is a synonym of: Capparis lasiantha
- Capparis lasiantha
- Capparis lasiantha var. citricarpa Domin is a synonym of: Capparis lasiantha
- Capparis lasiantha var. normalis is a synonym of: Capparis lasiantha
- Capparis lasiantha var. rhombifolia Domin is a synonym of: Capparis lasiantha
- Capparis lucida (DC.) Benth. f. lucida is a synonym of: Capparis lucida
- Capparis lucida
- Capparis nobilis var. arborea (F.Muell.) Domin is a synonym of: Capparis arborea
- Capparis ornans
- Capparis quiniflora
- Capparis sepiaria
- Capparis shanesiana
- Capparis sp. Forty Mile Scrub (B.Hyland 3883RFK) is a synonym of: Capparis arborea
- Capparis sp. Iron Range (B.Hyland 16395)
- Capparis uberiflora F.Muell. is a synonym of: Capparis lanceolaris
- Capraria crustacea L. is a synonym of: Lindernia crustacea
- Capsicum annuum var. glabriusculum
- Capsicum frutescens var. queenslandicum Domin is a synonym of: Capsicum annuum var. glabriusculum
- Carallia brachiata
- Carallia integerrima DC. is a synonym of: Carallia brachiata
- Carallia octopetala Benth. is a synonym of: Carallia brachiata
- Cardamine flexuosa
- Cardamomum dallachyi (F.Muell.) Kuntze is a synonym of: Meistera dallachyi
- Cardamomum spurium (J. Konig) Kuntze is a synonym of: Zingiber zerumbet
- Cardiopteris lobata var. moluccana (Blume) F.M.Bailey is a synonym of: Cardiopteris moluccana
- Cardiopteris moluccana
- Cardiospermum grandiflorum
- Cardiospermum halicacabum var. halicacabum
- Cardiospermum hirsutum Willd. is a synonym of: Cardiospermum grandiflorum
- Carduus vulgaris Savi is a synonym of: Cirsium vulgare
- Cardwellia sublimis
- Carex brunnea
- Carex cryptostachys
- Carex horsfieldii
- Carex maculata
- Carex rafflesiana
- Careya arborea Roxb. is a synonym of: Planchonia careya
- Careya arborea var. australis Benth. is a synonym of: Planchonia careya
- Careya australis (Benth.) F.Muell. is a synonym of: Planchonia careya
- Careya jambosoides Lauterb. is a synonym of: Syzygium suborbiculare
- Cargillia arborea A.Cunn. ex Hiern is a synonym of: Diospyros pentamera
- Cargillia australis R.Br. is a synonym of: Diospyros australis
- Cargillia laxa R.Br. is a synonym of: Diospyros maritima
- Cargillia megalocarpa F.Muell. is a synonym of: Diospyros maritima
- Cargillia pentamera Woolls & F.Muell. ex F.Muell. is a synonym of: Diospyros pentamera
- Carissa brownii F.Muell. is a synonym of: Carissa lanceolata
- Carissa brownii F.Muell. var. brownii is a synonym of: Carissa lanceolata
- Carissa brownii var. angustifolia Kempe is a synonym of: Carissa lanceolata
- Carissa brownii var. ovata (R.Br.) Maiden & Betche is a synonym of: Carissa ovata
- Carissa lanceolata
- Carissa laxiflora
- Carissa ovata
- Carissa ovata R.Br. var. ovata is a synonym of: Carissa ovata
- Carissa ovata var. pubescens F.M.Bailey is a synonym of: Carissa ovata
- Carissa ovata var. stolonifera F.M.Bailey is a synonym of: Carissa ovata
- Carissa scabra
- Carissa stolonifera (Bailey) Perrot & Vogt is a synonym of: Carissa ovata
- Carissa velutina Domin is a synonym of: Carissa lanceolata
- Carmona microphylla (Lam.) G.Don is a synonym of: Ehretia microphylla
- Carmona retusa (Vahl) Masam. is a synonym of: Ehretia microphylla
- Carnarvonia araliifolia var. araliifolia
- Carnarvonia araliifolia var. montana
- Carpentaria acuminata
- Carronia pedicellata
- Carronia protensa
- Carruthersia daronensis Elmer is a synonym of: Ichnocarpus frutescens
- Carumbium novo-guineense Warb. is a synonym of: Homalanthus novo-guineensis
- Caryodaphne australis A.Braun & Bouche is a synonym of: Cryptocarya laevigata
- Caryospermum arborescens F.Muell. is a synonym of: Perrottetia arborescens
- Caryota albertii
- Caryota rumphiana var. albertii (F.Muell. ex H.Wendl. & Drude) F.M.Bailey is a synonym of: Caryota albertii
- Caryota rumphiana var. australiensis Becc. is a synonym of: Caryota albertii
- Cascabela peruviana (Pers.) Raf. is a synonym of: Cascabela thevetia
- Cascabela thevetia
- Casearia costulata
- Casearia dallachii
- Casearia grayi
- Casearia grewiifolia var. gelonioides
- Casearia hexagona var. gelonioides Blume is a synonym of: Casearia grewiifolia var. gelonioides
- Casearia sp. Mission Beach (B.P.Hyland 773)
- Cassia brewsteri
- Cassia brewsteri var. sylvestris F.M.Bailey is a synonym of: Cassia queenslandica
- Cassia candenatensis Dennst. is a synonym of: Dalbergia candenatensis
- Cassia coluteoides Collad. is a synonym of: Senna pendula var. glabrata
- Cassia coronilloides Benth. is a synonym of: Senna coronilloides
- Cassia floribunda Cav. is a synonym of: Senna septemtrionalis
- Cassia gaudichaudii Hook. & Arn. is a synonym of: Senna gaudichaudii
- Cassia hirsuta L. is a synonym of: Senna hirsuta
- Cassia indecora var. glabrata Vogel is a synonym of: Senna pendula var. glabrata
- Cassia laevigata Willd. is a synonym of: Senna septemtrionalis
- Cassia laxiflora Benth. is a synonym of: Senna timoriensis
- Cassia obtusifolia L. is a synonym of: Senna obtusifolia
- Cassia occidentalis L. is a synonym of: Senna occidentalis
- Cassia queenslandica
- Cassia retusa var. dietrichiae Domin is a synonym of: Senna gaudichaudii
- Cassia retusa var. glabrata Domin is a synonym of: Senna gaudichaudii
- Cassia retusa var. typica Domin is a synonym of: Senna gaudichaudii
- Cassia retusa Vogel is a synonym of: Senna gaudichaudii
- Cassia retusa Vogel var. retusa is a synonym of: Senna gaudichaudii
- Cassia septemtrionalis Viv. is a synonym of: Senna septemtrionalis
- Cassia siamea Lam. is a synonym of: Senna siamea
- Cassia sophera L. is a synonym of: Senna sophera
- Cassia sophera var. clavigera Domin is a synonym of: Senna clavigera
- Cassia sophera var. pubescens Benth. is a synonym of: Senna clavigera
- Cassia sp. Kalpowar (D.G.Fell DF2769)
- Cassia sp. Paluma Range (G.Sankowsky 450)
- Cassia surattensis Burm.f. is a synonym of: Senna surattensis
- Cassia timoriensis DC. is a synonym of: Senna timoriensis
- Cassia tora L. is a synonym of: Senna tora
- Cassia tora L. is a synonym of: Senna obtusifolia
- Cassine australis (Vent.) Kuntze is a synonym of: Elaeodendron australe var. australe
- Cassine australis (Vent.) Kuntze var. australis is a synonym of: Elaeodendron australe var. australe
- Cassine australis var. pedunculosa Domin is a synonym of: Elaeodendron australe var. integrifolium
- Cassine glauca (Rottb.) Kuntze is a synonym of: Elaeodendron melanocarpum
- Cassine integrifolia (Tratt.) Domin is a synonym of: Elaeodendron australe var. integrifolium
- Cassine melanocarpa (F.Muell.) Kuntze is a synonym of: Elaeodendron melanocarpum
- Cassinia subtropica
- Cassytha capillaris
- Cassytha cuscutiformis F. Muell. ex Meisn. is a synonym of: Cassytha filiformis
- Cassytha filiformis f. pycnantha Domin is a synonym of: Cassytha filiformis
- Cassytha filiformis
- Cassytha filiformis var. pseudopubescens Domin is a synonym of: Cassytha filiformis
- Cassytha glabella R.Br. is a synonym of: Cassytha capillaris
- Cassytha strigosa Fitzg. is a synonym of: Cassytha capillaris
- Cassytha tenuis Allen is a synonym of: Cassytha capillaris
- Castanospermum australe
- Castanospermum australe Hook. var. australe is a synonym of: Castanospermum australe
- Castanospermum australe var. brevivexillum F.M.Bailey is a synonym of: Castanospermum australe
- Castanospermum brevivexillum (F.M.Bailey) Domin is a synonym of: Castanospermum australe
- Castanospora alphandii
- Castanospora longistipitata F.M.Bailey is a synonym of: Chisocheton longistipitatus
- Castilla elastica
- Casuarina cambagei R.T.Baker is a synonym of: Casuarina cristata
- Casuarina cristata
- Casuarina cunninghamiana
- Casuarina equisetifolia
- Casuarina equisetifolia L. subsp. equisetifolia is a synonym of: Casuarina equisetifolia
- Casuarina equisetifolia L. var. equisetifolia is a synonym of: Casuarina equisetifolia
- Casuarina equisetifolia subsp. incana (Benth.) L.A.S.Johnson is a synonym of: Casuarina equisetifolia
- Casuarina equisetifolia var. incana Benth. is a synonym of: Casuarina equisetifolia
- Casuarina equisetifolia var. incana J.Poiss. is a synonym of: Casuarina equisetifolia
- Casuarina equisetifolia var. typica Domin is a synonym of: Casuarina equisetifolia
- Casuarina lepidophloia F.Muell. is a synonym of: Casuarina cristata
- Casuarina lugubris Salisb. is a synonym of: Allocasuarina torulosa
- Casuarina quadrivalvis var. cristata (Miq.) Miq. is a synonym of: Casuarina cristata
- Casuarina tenuissima Spreng. is a synonym of: Allocasuarina torulosa
- Casuarina tortuosa A.Henry is a synonym of: Allocasuarina torulosa
- Casuarina torulosa Aiton is a synonym of: Allocasuarina torulosa
- Casuarina torulosa Aiton f. torulosa is a synonym of: Allocasuarina torulosa
- Catakidozamia hopei W.Hill is a synonym of: Lepidozamia hopei
- Catalepidia heyana
- Catha cunninghamii Hook. is a synonym of: Denhamia cunninghamii
- Catharanthus roseus
- Catharanthus roseus var. albus G.Don is a synonym of: Catharanthus roseus
- Catharanthus roseus var. occellatus G.Don is a synonym of: Catharanthus roseus
- Cathartocarpus brewsteri F.Muell. is a synonym of: Cassia brewsteri
- Cathormion moniliferum (Decne.) Hassk. is a synonym of: Cathormion umbellatum subsp. moniliforme
- Cathormion umbellatum (Vahl) Kosterm. is a synonym of: Cathormion umbellatum subsp. moniliforme
- Cathormion umbellatum subsp. moniliforme
- Cathormion umbellatum var. moniliforme (DC.) Brummitt is a synonym of: Cathormion umbellatum subsp. moniliforme
- Caturus scandens Lour. is a synonym of: Trophis scandens subsp. scandens
- Caulinia retusa (Benth.) F.Muell. is a synonym of: Vandasina retusa
- Causonis clematidea
- Causonis japonica
- Causonis maritima
- Cayratia acetosa (F.Muell.) Domin is a synonym of: Ampelocissus acetosa
- Cayratia calcicola Domin is a synonym of: Ampelocissus gardineri
- Cayratia cardiophylla
- Cayratia carnosa (Lam.) Gagnep. is a synonym of: Causonis trifolia
- Cayratia clematidea (F.Muell.) Domin is a synonym of: Causonis clematidea
- Cayratia cuneata Domin is a synonym of: Clematicissus opaca
- Cayratia japonica (Thunb.) Gagnep. is a synonym of: Causonis japonica
- Cayratia maritima Jackes is a synonym of: Causonis maritima
- Cayratia saponaria
- Cayratia strigosa (Bailey) Domin is a synonym of: Cayratia saponaria
- Cayratia trifolia (L.) Domin is a synonym of: Causonis trifolia
- Ceanothus asiaticus L. is a synonym of: Colubrina asiatica
- Ceanothus napalensis Wall. is a synonym of: Rhamnus napalensis
- Cebatha diffusa (Miers) Kuntze is a synonym of: Legnephora moorei
- Cebatha moorei (F.Muell.) Kuntze is a synonym of: Legnephora moorei
- Cebatha pubescens (Benth.) Kuntze is a synonym of: Pachygone ovata
- Cecarria obtusifolia
- Cecropia peltata
- Cedrela australis F.Muell. is a synonym of: Toona ciliata
- Cedrela toona Rottler is a synonym of: Toona ciliata
- Cedrela toona var. australis (F.Muell.) C.DC. is a synonym of: Toona ciliata
- Cedrela toona var. grandiflora C.DC. is a synonym of: Toona ciliata
- Cedrela toona var. parviflora Benth. is a synonym of: Toona ciliata
- Cedrela toona var. vestita C.T.White is a synonym of: Toona ciliata
- Celastrus baileyanus Domin is a synonym of: Denhamia cunninghamii
- Celastrus bilocularis F.Muell. is a synonym of: Denhamia bilocularis
- Celastrus cunninghamii (Hook.) F.Muell. is a synonym of: Denhamia cunninghamii
- Celastrus cunninghamii (Hook.) F.Muell. var. cunninghamii is a synonym of: Denhamia cunninghamii
- Celastrus cunninghamii var. parvifolius F.M.Bailey is a synonym of: Denhamia cunninghamii
- Celastrus dispermus F.Muell. is a synonym of: Denhamia disperma
- Celastrus emarginata Willd. is a synonym of: Gymnosporia inermis
- Celastrus montana Roth ex Roemer & Schultes is a synonym of: Gymnosporia inermis
- Celastrus opposita Wallich in Roxb. is a synonym of: Pleurostylia opposita
- Celastrus subspicatus
- Celosia baccata Retz is a synonym of: Deeringia amaranthoides
- Celtis aspera Brongn. is a synonym of: Trema tomentosa var. aspera
- Celtis australiensis Sattarian is a synonym of: Celtis strychnoides
- Celtis hildebrandii
- Celtis ingens F.Muell. is a synonym of: Celtis paniculata
- Celtis orientalis L. is a synonym of: Trema orientalis
- Celtis paniculata
- Celtis philippensis
- Celtis strychnoides
- Celtis timorensis
- Celtis tomentosa Roxb. is a synonym of: Trema tomentosa var. tomentosa
- Cenchrus brevisetosus
- Cenchrus echinatus
- Cenchrus elymoides var. brevisetosus B.K.Simon is a synonym of: Cenchrus brevisetosus
- Cenchrus lappaceus L. is a synonym of: Centotheca lappacea
- Centella asiatica
- Centotheca lappacea
- Centotheca latifolia (Osbeck) Trin. is a synonym of: Centotheca lappacea
- Centotheca philippinensis
- Centratherum punctatum subsp. punctatum
- Centrosema molle
- Centrosema pubescens Benth. is a synonym of: Centrosema molle
- Ceodes umbellifera Forster & G.Forster is a synonym of: Pisonia umbellifera
- Cephalanthus chinensis Lam. is a synonym of: Neolamarckia cadamba
- Cephalanthus orientalis L. is a synonym of: Nauclea orientalis
- Cephalaralia cephalobotrys
- Ceratanthus longicornis (F.Muell.) G.Taylor is a synonym of: Platostoma longicorne
- Ceratopetalum corymbosum
- Ceratopetalum hylandii
- Ceratopetalum iugumensis
- Ceratopetalum macrophyllum
- Ceratopetalum sp. (Mt Hemmant BH 3338RFK) is a synonym of: Ceratopetalum iugumensis
- Ceratopetalum sp. (Mt Spurgeon BH 1501RFK) is a synonym of: Ceratopetalum hylandii
- Ceratopetalum succirubrum
- Ceratopetalum virchowii
- Cerbera dilatata S.T.Blake is a synonym of: Cerbera inflata
- Cerbera floribunda
- Cerbera inflata
- Cerbera lactaria Buch.- Ham. ex Spreng. is a synonym of: Cerbera manghas
- Cerbera lactaria Ham. ex D.Dietr. is a synonym of: Cerbera manghas
- Cerbera manghas auct. non L. is a synonym of: Cerbera inflata
- Cerbera manghas
- Cerbera odollam var. mugfordii F.M.Bailey is a synonym of: Cerbera manghas
- Cerbera odollum auct. non Gaertn is a synonym of: Cerbera manghas
- Cerbera odollum auct. non Gaertn. is a synonym of: Cerbera floribunda
- Cerbera odollum Gaert. is a synonym of: Cerbera manghas
- Cerbera peruviana Pers. is a synonym of: Cascabela thevetia
- Cerbera thevetia L. is a synonym of: Cascabela thevetia
- Ceropegia cumingiana
- Cestrum nocturnum
- Chaetochloa apiculata Scribn. & Merr. is a synonym of: Setaria apiculata
- Chailletia papuana Becc. is a synonym of: Dichapetalum papuanum
- Chailletia timoriensis DC. is a synonym of: Dichapetalum timoriense
- Chalcas paniculata L. is a synonym of: Murraya paniculata
- Chamaesyce hyssopifolia (L.) Small is a synonym of: Euphorbia hyssopifolia
- Chariessa moorei (Benth.) Engl. is a synonym of: Citronella moorei
- Chariessa smythii (F.Muell.) Becc. is a synonym of: Citronella smythii
- Chavica hugeliana Miq. is a synonym of: Piper hederaceum var. hederaceum
- Cheilocostus potierae
- Chenopodium carinatum R.Br. is a synonym of: Dysphania carinata
- Chilocarpus australis F.Muell. is a synonym of: Melodinus australis
- Chionanthus acuminiger
- Chionanthus axillaris
- Chionanthus ghaeri Gaertn. is a synonym of: Scirpodendron ghaeri
- Chionanthus ramiflorus
- Chionanthus sleumeri
- Chionanthus sp. Little Pine L.A. (B.Hyland 2520RFK)
- Chisocheton longistipitatus
- Chomelia dallachiana (F. Muell. ex Benth.) Kuntze is a synonym of: Tarenna dallachiana subsp. dallachiana
- Choriceras majus
- Choriceras tricorne
- Choripetalum australianum F.Muell. is a synonym of: Embelia australiana
- Chromolaena odorata
- Chrysophyllum antilogum (F.Muell.) Vink is a synonym of: Amorphospermum antilogum
- Chrysophyllum castanospermum C.T.White is a synonym of: Vanroyena castanosperma
- Chrysophyllum lanceolatum (Blume) DC. is a synonym of: Chrysophyllum roxburghii
- Chrysophyllum myrsinodendron F.Muell. is a synonym of: Planchonella myrsinodendron
- Chrysophyllum pruniferum F.Muell. is a synonym of: Niemeyera prunifera
- Chrysophyllum roxburghii G.Don is a synonym of: Donella lanceolata
- Chrysophyllum sp. Mt Lewis (A.K.Irvine 1402) is a synonym of: Niemeyera discolor
- Chukrasia tabularis
- Cinnamomum baileyanum
- Cinnamomum camphora
- Cinnamomum laubatii
- Cinnamomum oliveri
- Cinnamomum propinquum
- Cinnamomum tamala (Buch.-Ham.) T.Nees & C.H.Eberm. is a synonym of: Cinnamomum laubatii
- Cirsium vulgare
- Cissampelos ovata Poir. is a synonym of: Pachygone ovata
- Cissampelos convolvulacea var. hirsuta (Buch._Ham. ex DC.) Hassk. is a synonym of: Cissampelos pareira var. hirsuta
- Cissampelos hernandiifolia Willd. is a synonym of: Stephania japonica var. discolor
- Cissampelos hirsuta Buch._Ham. ex DC. is a synonym of: Cissampelos pareira var. hirsuta
- Cissampelos pareira L. is a synonym of: Cissampelos pareira var. hirsuta
- Cissampelos pareira var. hirsuta
- Cissampelos pareira var. typica Diels is a synonym of: Cissampelos pareira var. hirsuta
- Cissampelos pareira var. Upper Massey Creek (L.S. Smith 11741) is a synonym of: Cissampelos pareira var. hirsuta
- Cissus acetosa F.Muell. is a synonym of: Ampelocissus acetosa
- Cissus acutifolia Poir. is a synonym of: Causonis trifolia
- Cissus adnata
- Cissus antarctica var. integerrima Domin is a synonym of: Cissus antarctica
- Cissus antarctica var. pubescens Domin is a synonym of: Cissus antarctica
- Cissus antarctica
- Cissus arthroclada Lauterb. is a synonym of: Cissus penninervis
- Cissus australasica F.Muell. is a synonym of: Cissus hypoglauca
- Cissus baudiniana Brouss. ex DC. is a synonym of: Cissus antarctica
- Cissus bicolor Domin is a synonym of: Cayratia saponaria
- Cissus brachypoda (F.Muell.) Planch. is a synonym of: Cissus sterculiifolia
- Cissus cardiophylla
- Cissus carnosa Lam. is a synonym of: Causonis trifolia
- Cissus cinerea Lam. is a synonym of: Causonis trifolia
- Cissus clematidea (F.Muell.) Planch. is a synonym of: Causonis clematidea
- Cissus cordata Roxb. is a synonym of: Cissus repens
- Cissus crenata Vahl is a synonym of: Causonis trifolia
- Cissus glandulosa Poir. is a synonym of: Cissus antarctica
- Cissus hastata
- Cissus hypoglauca
- Cissus japonica Willd. is a synonym of: Causonis japonica
- Cissus muelleri Planch. is a synonym of: Cissus cardiophylla
- Cissus oblonga
- Cissus obovata M.A.Lawson is a synonym of: Causonis japonica
- Cissus obtusifolia Poir. is a synonym of: Causonis trifolia
- Cissus opaca F.Muell. is a synonym of: Clematicissus opaca
- Cissus penninervis
- Cissus pentaclada
- Cissus psoraliifolia (F.Muell.) Planch. is a synonym of: Causonis trifolia
- Cissus reniformis
- Cissus repens
- Cissus saponaria (Seem. ex Benth.) Planch. is a synonym of: Cayratia saponaria
- Cissus sterculiifolia
- Cissus trifolia (L.) K.Schum. is a synonym of: Causonis trifolia
- Cissus vinosa
- Cissus wightii Planchon in A. & C. DC. is a synonym of: Cissus adnata
- Citriobatus megacarpus F.Muell. is a synonym of: Pittosporum spinescens
- Citriobatus pauciflorus var. kennyi F.M.Bailey is a synonym of: Pittosporum spinescens
- Citriobatus spinescens (F.Muell.) Druce is a synonym of: Pittosporum spinescens
- Citronella moorei
- Citronella smythii
- Citrus aurantium var. sinensis L. is a synonym of: Citrus x aurantium
- Citrus garrawayi
- Citrus inodora
- Citrus maideniana Domin is a synonym of: Citrus inodora
- Citrus reticulata
- Citrus sinensis (L.) Osbeck is a synonym of: Citrus x aurantium
- Citrus x aurantium
- Citrus x jambhiri
- Cladium scleroides F.Muell. is a synonym of: Exocarya scleroides
- Cladodes ilicifolia Baill. is a synonym of: Alchornea ilicifolia
- Cladodes rugosa Lour. is a synonym of: Alchornea rugosa
- Cladodes thozetiana Baill. is a synonym of: Alchornea thozetiana
- Claoxylon angustifolium
- Claoxylon hillii
- Claoxylon muricatum Wight is a synonym of: Mallotus resinosus
- Claoxylon tenerifolium (Baill.) F.Muell. is a synonym of: Claoxylon tenerifolium subsp. tenerifolium
- Claoxylon tenerifolium subsp. boreale
- Claoxylon tenerifolium subsp. tenerifolium
- Clausena brevistyla
- Clausena excavata
- Clausena sp. Tipperary (G.J.Leach 2152) is a synonym of: Clausena excavata
- Cleidion javanicum
- Cleidion spiciflorum (Burm.f.) Merr. is a synonym of: Cleidion javanicum
- Cleistanthus apodus
- Cleistanthus cunninghamii
- Cleistanthus dallachyanus
- Cleistanthus discolor
- Cleistanthus hylandii
- Cleistanthus myrianthus
- Cleistanthus peninsularis
- Cleistanthus semiopacus Benth. var. semiopacus is a synonym of: Cleistanthus semiopacus
- Cleistanthus semiopacus
- Cleistanthus semiopacus var. curvaminis Airy Shaw is a synonym of: Cleistanthus peninsularis
- Cleistanthus xerophilus
- Cleisticalyx cerasoides (Roxb.) I.M. Turner is a synonym of: Syzygium nervosum
- Cleistocalyx operculatus (Roxb.) Merr. & L.M.Perry is a synonym of: Syzygium nervosum
- Clematicissus opaca
- Clematis aristata subsp. pickeringii (A.Gray) Kuntze is a synonym of: Clematis pickeringii
- Clematis aristata var. glycinoides F. Muell. ex Kuntze is a synonym of: Clematis pickeringii
- Clematis glycinoides DC. is a synonym of: Clematis pickeringii
- Clematis glycinoides var. submutica Benth. is a synonym of: Clematis pickeringii
- Clematis pickeringii
- Clematis queenslandica W.T. Wang is a synonym of: Clematis pickeringii
- Clematis Rhodocarpoides W.T. Wang is a synonym of: Clematis pickeringii
- Cleome aculeata
- Cleome flava DC. is a synonym of: Cleome viscosa
- Cleome viscosa
- Clerodendrum cardiophyllum F.Muell. is a synonym of: Clerodendrum floribundum var. coriaceum
- Clerodendrum commersonii (Poir.) Spreng. is a synonym of: Clerodendrum inerme
- Clerodendrum coriaceum R.Br. is a synonym of: Clerodendrum floribundum var. coriaceum
- Clerodendrum costatum
- Clerodendrum cunninghamii Benth. is a synonym of: Clerodendrum costatum
- Clerodendrum floribundum var. floribundum
- Clerodendrum floribundum var. angustifolium
- Clerodendrum floribundum var. coriaceum
- Clerodendrum floribundum var. latifolium F.Muell. is a synonym of: Clerodendrum floribundum var. ovatum
- Clerodendrum floribundum var. ovatum
- Clerodendrum grayi
- Clerodendrum hemiderma Benth. is a synonym of: Glossocarya hemiderma
- Clerodendrum huegelii Regel is a synonym of: Clerodendrum tomentosum
- Clerodendrum inerme
- Clerodendrum javanicum Sprengel is a synonym of: Clerodendrum inerme
- Clerodendrum lanceolatum F.Muell. is a synonym of: Clerodendrum tomentosum
- Clerodendrum longiflorum var. glabrum
- Clerodendrum medium R.Br. is a synonym of: Clerodendrum tomentosum
- Clerodendrum nereifolium (Roxb.) King & Gamble is a synonym of: Clerodendrum inerme
- Clerodendrum ovalifolium (Juss.) Bakh. is a synonym of: Clerodendrum floribundum var. ovatum
- Clerodendrum ovatum R.Br. is a synonym of: Clerodendrum floribundum var. ovatum
- Clerodendrum paniculatum
- Clerodendrum populneum E.Beer & H.J.Lam is a synonym of: Clerodendrum floribundum var. ovatum
- Clerodendrum tomentosum
- Clerodendrum tomentosum (Vent.) R.Br. var. tomentosum is a synonym of: Clerodendrum tomentosum
- Clerodendrum tomentosum var. lanceolatum (F.Muell.) Munir is a synonym of: Clerodendrum tomentosum
- Clerodendrum tomentosum var. typicum Domin is a synonym of: Clerodendrum tomentosum
- Clerodendrum tracyanum
- Clitoria ternatea
- Clompanus acerifolia (G.Don) Kuntze is a synonym of: Brachychiton acerifolius
- Clompanus australis (Schott & Endl.) Kuntze is a synonym of: Brachychiton australis
- Clompanus caudata (Benth.) Kuntze is a synonym of: Brachychiton diversifolius subsp. diversifolius
- Clypea discolor Blume is a synonym of: Stephania japonica var. discolor
- Cnesmocarpon dasyantha
- Coatesia paniculata
- Cocculus forsteri DC. is a synonym of: Stephania japonica var. timoriensis
- Cocculus japonicus (Thunb.) DC. is a synonym of: Stephania japonica var. japonica
- Cocculus japonicus (Thunb.) DC. var. timoriensis DC. is a synonym of: Stephania japonica var. timoriensis
- Cocculus moorei F.Muell. is a synonym of: Legnephora moorei
- Cocculus selwynii is a synonym of: Hypserpa laurina
- Cocculus selwynii (F.Muell.) F.M.Bailey is a synonym of: Hypserpa laurina
- Cochlospermum gillivraei
- Cochlospermum gillivraei Benth. subsp. gillivraei is a synonym of: Cochlospermum gillivraei
- Cocos normanbyi W.Hill is a synonym of: Normanbya normanbyi
- Cocos nucifera
- Codiaeum lucidum (Endl.) Mull.Arg. is a synonym of: Baloghia inophylla
- Codiaeum membranaceum
- Codiaeum moluccanum Decne. is a synonym of: Codiaeum variegatum var. moluccanum
- Codiaeum obovatum Zoll. is a synonym of: Codiaeum variegatum var. moluccanum
- Codiaeum variegatum var. moluccanum
- Codonocarpus attenuatus
- Codonocarpus australis Moq. is a synonym of: Codonocarpus attenuatus
- Coelebogyne ilicifolia J.Sm. is a synonym of: Alchornea ilicifolia
- Coelebogyne thozetiana Pax & K.Hoffm. is a synonym of: Alchornea thozetiana
- Coelospermum dasylobum
- Coelospermum decipiens
- Coelospermum paniculatum F.Muell. is a synonym of: Coelospermum paniculatum var. paniculatum
- Coelospermum paniculatum var. paniculatum
- Coelospermum paniculatum var. syncarpum
- Coelospermum purpureum
- Coffea arabica
- Coffea brassii
- Coffea liberica
- Coffea odorata Forst. f. is a synonym of: Psydrax odorata f. foveolata
- Coleus amicorum
- Coleus apreptus
- Coleus australis
- Coleus congestus
- Coleus diversus
- Coleus dumicola
- Coleus excelsus
- Coleus foetidus
- Coleus gratus
- Coleus graveolens
- Coleus magnificus
- Coleus scutellarioides
- Coleus thalassoscopicus
- Collyris major Vahl is a synonym of: Dischidia major
- Colocasia esculenta
- Colocasia esculenta var. aquatilis Hassk. is a synonym of: Colocasia esculenta
- Colocasia macrorrhiza (L.) Schott is a synonym of: Alocasia brisbanensis
- Colubrina asiatica
- Colubrina asiatica (L.) Brongn. var. asiatica is a synonym of: Colubrina asiatica
- Colubrina excelsa Cunn. ex Fenzl is a synonym of: Alphitonia excelsa
- Columbea bidwillii (Hook.) Carriere is a synonym of: Araucaria bidwillii
- Columella japonica (Thunb.) Merrill is a synonym of: Causonis japonica
- Columella trifolia (L.) Merr. is a synonym of: Causonis trifolia
- Combretum trifoliatum
- Commelina axillaris L. is a synonym of: Cyanotis axillaris
- Commelina diffusa
- Commelina ensifolia
- Commersonia bartramia
- Commersonia echinata J.R.Forst. & G.Forst. is a synonym of: Commersonia bartramia
- Commersonia macrostipulata
- Commersonia sp. (Klondike BH 25863RFK) is a synonym of: Indagator fordii
- Commersonia sp. Kuranda (K.Williams 211) is a synonym of: Commersonia macrostipulata
- Commicarpus chinensis subsp. chinensis
- Coniogeton arborescens Blume is a synonym of: Buchanania arborescens
- Connarus conchocarpus subsp. conchocarpus
- Convallaria fruticosa L. is a synonym of: Cordyline fruticosa
- Convolvulus brasiliensis L. is a synonym of: Ipomoea pes-caprae subsp. brasiliensis
- Convolvulus cairicus L. is a synonym of: Ipomoea cairica
- Convolvulus corymbosa L. is a synonym of: Turbina corymbosa
- Convolvulus denticulatus (R.Br.) Spreng. is a synonym of: Ipomoea littoralis
- Convolvulus dissectus Jacq. is a synonym of: Distimake dissectus
- Convolvulus gemellus Burm. f. is a synonym of: Merremia gemella
- Convolvulus gracilis (R.Br.) Spreng. is a synonym of: Ipomoea gracilis
- Convolvulus indicus Burm. is a synonym of: Ipomoea indica
- Convolvulus multivalvis R.Br. is a synonym of: Jacquemontia paniculata
- Convolvulus nervosus Burm. f. is a synonym of: Argyreia nervosa
- Convolvulus nil L. is a synonym of: Ipomoea nil
- Convolvulus obscurus L. is a synonym of: Ipomoea obscura
- Convolvulus paniculatus L. is a synonym of: Ipomoea mauritiana
- Convolvulus parviflorus Vahl is a synonym of: Jacquemontia paniculata
- Convolvulus peltatus L. is a synonym of: Decalobanthus peltatus
- Convolvulus pennatus Desr. in Lamk. is a synonym of: Ipomoea quamoclit
- Convolvulus plebeius (R.Br.) Spreng. is a synonym of: Ipomoea plebeia
- Convolvulus speciosus L. f. is a synonym of: Argyreia nervosa
- Convolvulus tridentatus L is a synonym of: Xenostegia tridentata
- Conyza canadensis (L.) Cronquist is a synonym of: Erigeron canadensis
- Conyza cinerea L. is a synonym of: Cyanthillium cinereum
- Conyza leucantha (D.Don) Ludlow & P.H.Raven is a synonym of: Eschenbachia leucantha
- Conyza patula Aiton is a synonym of: Cyanthillium patulum
- Conyza riparia Blume is a synonym of: Blumea riparia
- Conyza sumatrensis (Retz.) E.Walker is a synonym of: Erigeron sumatrensis
- Conyza sylvatica Blume is a synonym of: Blumea sylvatica
- Coombea riparia van Royen is a synonym of: Medicosma riparia
- Corchorus aestuans
- Cordia aspera
- Cordia brownii DC. is a synonym of: Cordia dichotoma
- Cordia dichotoma
- Cordia ixiocarpa F.Muell. is a synonym of: Cordia dichotoma
- Cordia myxa
- Cordia myxa var. ixiocarpa (F.Muell.) Domin is a synonym of: Cordia myxa
- Cordia orientalis R.Br. is a synonym of: Cordia subcordata
- Cordia subcordata
- Cordyline cannifolia
- Cordyline fruticosa
- Cordyline haageana K.Koch is a synonym of: Cordyline murchisoniae
- Cordyline hedychioides F.Muell. is a synonym of: Cordyline fruticosa
- Cordyline jacquinii Kunth is a synonym of: Cordyline fruticosa
- Cordyline manners-suttoniae
- Cordyline murchisoniae
- Cordyline petiolaris
- Cordyline terminalis (L.) Kunth is a synonym of: Cordyline fruticosa
- Cordyline terminalis var. cannifolia (R.Br.) Baker is a synonym of: Cordyline cannifolia
- Cordyline terminalis var. hedychioides (F.Muell.) Baker is a synonym of: Cordyline fruticosa
- Cordyline terminalis var. manners-suttoniae (F.Muell.) Baker is a synonym of: Cordyline manners-suttoniae
- Cordyline terminalis var. petiolaris Domin is a synonym of: Cordyline petiolaris
- Coronanthera australiana C.T.White is a synonym of: Lenbrassia australiana var. australiana
- Coronidium rupicola
- Corsia dispar
- Corsia sp. (Herberton Range B.Gray 3994) is a synonym of: Corsia dispar
- Corymbia intermedia
- Corymbia tessellaris
- Corymbia torelliana
- Corymborkis veratrifolia
- Corymborkis veratrifolia (Reinw.) Blume var. veratrifolia is a synonym of: Corymborkis veratrifolia
- Corynocarpus australasicus C.T.White is a synonym of: Corynocarpus cribbianus
- Corynocarpus cribbianus
- Corypha australis R.Br. is a synonym of: Livistona australis
- Corypha decora W.Bull. is a synonym of: Livistona decora
- Corypha elata Roxb. is a synonym of: Corypha utan
- Corypha utan
- Cosmos caudatus
- Cossinia australiana
- Costus ananassae Hassk. is a synonym of: Tapeinochilos ananassae
- Costus dubius
- Costus potierae F.Muell. is a synonym of: Cheilocostus potierae
- Costus pungens Teysmann & Binnend. is a synonym of: Tapeinochilos ananassae
- Costus speciosus (Konig) Smith is a synonym of: Cheilocostus potierae
- Cotyledon pinnata Lam. is a synonym of: Bryophyllum pinnatum
- Covellia albipila Miq. is a synonym of: Ficus albipila
- Covellia hispida (L.f.) Miq. is a synonym of: Ficus hispida
- Covellia oppositifolia (Roxb.) Gasp. is a synonym of: Ficus hispida
- Cracca purpurea L. is a synonym of: Tephrosia purpurea
- Crassocephalum crepidioides
- Crateva religiosa
- Crinum australe Donn is a synonym of: Crinum pedunculatum
- Crinum australe Donn var. australe is a synonym of: Crinum pedunculatum
- Crinum australe var. pedunculatum (R.Br.) Herb. is a synonym of: Crinum pedunculatum
- Crinum australe var. rubricaule Herb. is a synonym of: Crinum pedunculatum
- Crinum brachyandrum Herb. is a synonym of: Crinum pedunculatum
- Crinum brevilimbum Herb. is a synonym of: Crinum pedunculatum
- Crinum douglasii F.M.Bailey is a synonym of: Crinum pedunculatum
- Crinum exaltatum Herb. is a synonym of: Crinum pedunculatum
- Crinum pedunculatum
- Crinum taitense var. queenslandicum Domin is a synonym of: Crinum pedunculatum
- Crispiloba disperma
- Crotalaria laburnifolia
- Crotalaria lanceolata
- Crotalaria lanceolata E.Mey. subsp. lanceolata is a synonym of: Crotalaria lanceolata
- Crotalaria pallida
- Crotalaria verrucosa
- Croton acronychioides
- Croton affinis Maiden & R.T.Baker is a synonym of: Croton acronychioides
- Croton arnhemicus
- Croton arnhemicus Mull.Arg. var. arnhemicus is a synonym of: Croton arnhemicus
- Croton arnhemicus var. typicus Domin is a synonym of: Croton arnhemicus
- Croton arnhemicus var. urenifolius Baill. is a synonym of: Croton arnhemicus
- Croton brachypus
- Croton capitis-york
- Croton capitis-york Airy Shaw var. capitis-york is a synonym of: Croton capitis-york
- Croton capitis-york var. pilosus Airy Shaw is a synonym of: Croton capitis-york
- Croton caudatus
- Croton densivestitus
- Croton dockrillii
- Croton habrophyllus
- Croton inophyllus Forst. f. is a synonym of: Baloghia inophylla
- Croton insularis
- Croton insularis Baill. var. insularis is a synonym of: Croton insularis
- Croton insularis var. genuinus Mull.Arg. is a synonym of: Croton insularis
- Croton maidenii R.T.Baker is a synonym of: Croton phebalioides
- Croton mirus Domin is a synonym of: Codiaeum variegatum var. moluccanum
- Croton mollissimus Geiseler is a synonym of: Mallotus mollissimus
- Croton mutabilis
- Croton phebalioides
- Croton phebalioides Mull.Arg. var. phebalioides is a synonym of: Croton phebalioides
- Croton phebalioides var. acuminatus Domin is a synonym of: Croton phebalioides
- Croton phebalioides var. typicus Domin is a synonym of: Croton phebalioides
- Croton philippense Lam. is a synonym of: Mallotus philippensis
- Croton pubens Domin is a synonym of: Croton densivestitus
- Croton repandus Rottler is a synonym of: Mallotus repandus
- Croton ricinoides Pers. is a synonym of: Mallotus mollissimus
- Croton simulans
- Croton sp. (Possum Scrub PIF 14376) is a synonym of: Croton mutabilis
- Croton stockeri
- Croton tomentellus
- Croton tomentellus Mull.Arg. is a synonym of: Croton tomentellus
- Croton triacros
- Croton wassi-kussae var. stockeri Airy Shaw is a synonym of: Croton stockeri
- Crudia abbreviata
- Crudia sp. Archer River (B.Hyland 3078RFK) is a synonym of: Crudia abbreviata
- Cryptocarya angulata
- Cryptocarya australis (Hook.) Benth. is a synonym of: Cryptocarya laevigata
- Cryptocarya bamagana
- Cryptocarya bancroftii F.M.Bailey is a synonym of: Beilschmiedia bancroftii
- Cryptocarya bellendenkerana
- Cryptocarya bidwillii
- Cryptocarya bowiei (Walp.) Druce is a synonym of: Cryptocarya laevigata
- Cryptocarya brassii
- Cryptocarya burckiana
- Cryptocarya camphorata (Meisn.) Domin is a synonym of: Cinnamomum oliveri
- Cryptocarya cercophylla
- Cryptocarya cinnamomifolia Benth. is a synonym of: Cryptocarya densiflora
- Cryptocarya clarksoniana
- Cryptocarya claudiana
- Cryptocarya cocosoides
- Cryptocarya corrugata
- Cryptocarya cunninghamii
- Cryptocarya densiflora
- Cryptocarya endiandrifolia
- Cryptocarya exfoliata
- Cryptocarya glabella Domin is a synonym of: Cryptocarya pleurosperma
- Cryptocarya glaucescens
- Cryptocarya glaucescens var. camphorata Meisn. is a synonym of: Cinnamomum oliveri
- Cryptocarya glaucescens var. coriacea Benth. is a synonym of: Cryptocarya vulgaris
- Cryptocarya glaucescens var. nitida Benth. is a synonym of: Cryptocarya glaucescens
- Cryptocarya glaucescens var. reticulata Meisn. is a synonym of: Beilschmiedia obtusifolia
- Cryptocarya glaucocarpa
- Cryptocarya grandis
- Cryptocarya graveolens F.M.Bailey is a synonym of: Syzygium graveolens
- Cryptocarya hypoglauca Meisn. is a synonym of: Cryptocarya leucophylla
- Cryptocarya hypoglauca Meisn. var. hypoglauca is a synonym of: Cryptocarya leucophylla
- Cryptocarya hypoglauca var. attenuata Meisn. is a synonym of: Cryptocarya glaucescens
- Cryptocarya hypospodia
- Cryptocarya hypotephra F.Muell. is a synonym of: Cryptocarya vulgaris
- Cryptocarya insignis F.M.Bailey is a synonym of: Endiandra insignis
- Cryptocarya laevigata
- Cryptocarya laevigata var. bowiei (Hook.) Kosterm. is a synonym of: Cryptocarya laevigata
- Cryptocarya leucophylla
- Cryptocarya lividula
- Cryptocarya macdonaldii
- Cryptocarya mackinnoniana
- Cryptocarya meissneri F.Muell. is a synonym of: Cryptocarya glaucescens
- Cryptocarya melanocarpa
- Cryptocarya moretoniana Meisn. is a synonym of: Cryptocarya glaucescens
- Cryptocarya multicostata Domin is a synonym of: Cryptocarya hypospodia
- Cryptocarya murrayi
- Cryptocarya oblata
- Cryptocarya obovata var. hypospodia (F.Muell.) W.D.Francis is a synonym of: Cryptocarya hypospodia
- Cryptocarya obovata var. tropica F.M.Bailey is a synonym of: Cryptocarya hypospodia
- Cryptocarya obtusifolia Meisn. is a synonym of: Beilschmiedia obtusifolia
- Cryptocarya onoprienkoana
- Cryptocarya palmerstonii F.M.Bailey is a synonym of: Endiandra palmerstonii
- Cryptocarya percrassa Kosterm. is a synonym of: Cryptocarya hypospodia
- Cryptocarya pleurosperma
- Cryptocarya putida
- Cryptocarya rhodosperma
- Cryptocarya saccharata
- Cryptocarya smaragdina
- Cryptocarya sp. (Gadgarra BH 25231RFK) is a synonym of: Cryptocarya whiffiniana
- Cryptocarya sp. Boonjee (B.Hyland 25794RFK) is a synonym of: Cryptocarya cercophylla
- Cryptocarya sp. Boonjie (L.W.Jessup+ 319) is a synonym of: Cryptocarya cercophylla
- Cryptocarya triplinervis var. pubens
- Cryptocarya triplinervis var. riparia
- Cryptocarya vulgaris
- Cryptocarya whiffiniana
- Cryptolepis grayi P.I.Forst. is a synonym of: Phyllanthera grayi
- Cryptostegia grandiflora
- Cubeba hederacea Miq. is a synonym of: Piper hederaceum var. hederaceum
- Cucumis althaeoides
- Cucumis anguria L. is a synonym of: Cucumis anguria var. anguria
- Cucumis anguria var. anguria
- Cucumis costatus
- Cucumis melo
- Cucumis melo subsp. agrestis (Naudin) Pangalo is a synonym of: Cucumis melo
- Cucumis melo var. agrestis Naudin is a synonym of: Cucumis melo
- Cucumis queenslandicus
- Cucumis sp. Little Annan River (B.Gray 101) is a synonym of: Cucumis costatus
- Cucumis umbellatus
- Cudrania cochinchinensis (Lour.) Kudo & Masam. is a synonym of: Maclura cochinchinensis
- Cudrania javanensis Trecul is a synonym of: Maclura cochinchinensis
- Cudrania javanensis var. bancroftii F.M.Bailey is a synonym of: Maclura cochinchinensis
- Cumbia australis Britten is a synonym of: Planchonia careya
- Cupania anacardioides A.Rich. is a synonym of: Cupaniopsis anacardioides
- Cupania anacardioides A.Rich. var. anacardioides is a synonym of: Cupaniopsis anacardioides
- Cupania anodonta F.Muell. is a synonym of: Mischocarpus anodontus
- Cupania cordierorum F.Muell. is a synonym of: Synima cordierorum
- Cupania curvidentata F.M.Bailey is a synonym of: Cupaniopsis flagelliformis
- Cupania daemeliana F.Muell. is a synonym of: Toechima daemelianum
- Cupania diphyllostegia F.Muell. is a synonym of: Diploglottis diphyllostegia
- Cupania erythrocarpa F.Muell. is a synonym of: Toechima erythrocarpum
- Cupania exangulata (F.Muell.) F.Muell. is a synonym of: Mischocarpus exangulatus
- Cupania flagelliformis F.M.Bailey is a synonym of: Cupaniopsis flagelliformis
- Cupania foveolata F.Muell. is a synonym of: Cupaniopsis foveolata
- Cupania grandissima (F.Muell.) F.Muell. is a synonym of: Mischocarpus grandissimus
- Cupania lachnocarpa (F.Muell.) F.Muell. is a synonym of: Mischocarpus lachnocarpus
- Cupania laurifolia Ettingsh. is a synonym of: Mischocarpus pyriformis subsp. pyriformis
- Cupania martyana F.Muell. is a synonym of: Sarcopteryx martyana
- Cupania mortoniana F.Muell. is a synonym of: Rhysotoechia mortoniana
- Cupania oshanesiana F.Muell. is a synonym of: Arytera divaricata
- Cupania pseudorhus A.Rich. is a synonym of: Jagera pseudorhus var. pseudorhus
- Cupania pyriformis (F.Muell.) F.Muell. is a synonym of: Mischocarpus pyriformis subsp. pyriformis
- Cupania robertsonii F.Muell. is a synonym of: Rhysotoechia robertsonii
- Cupania sericolignis F.M.Bailey is a synonym of: Lepiderema sericolignis
- Cupaniopsis anacardioides
- Cupaniopsis anacardioides (A.Rich.) Radlk. f. anacardioides is a synonym of: Cupaniopsis anacardioides
- Cupaniopsis anacardioides (A.Rich.) Radlk. var. anacardioides is a synonym of: Cupaniopsis anacardioides
- Cupaniopsis anacardioides f. genuina Radlk. is a synonym of: Cupaniopsis anacardioides
- Cupaniopsis baileyana Radlk. is a synonym of: Cupaniopsis foveolata
- Cupaniopsis cooperorum
- Cupaniopsis curvidentata (Bailey) Radlk. is a synonym of: Cupaniopsis flagelliformis
- Cupaniopsis dallachyi
- Cupaniopsis diploglottoides
- Cupaniopsis flagelliformis (Bailey) Radlk. var. flagelliformis is a synonym of: Cupaniopsis flagelliformis
- Cupaniopsis flagelliformis
- Cupaniopsis fleckeri
- Cupaniopsis foveolata
- Cupaniopsis papillosa
- Cupaniopsis simulata
- Cupaniopsis sp. Tully Falls is a synonym of: Cupaniopsis papillosa
- Cupaniopsis wadsworthii
- Curculigo recurvata W.TAiton is a synonym of: Molineria capitulata
- Curcuma australasica
- Curcuma longa
- Cyanocarpus cribbiana F.M.Bailey is a synonym of: Corynocarpus cribbianus
- Cyanocarpus nortoniana F.M.Bailey is a synonym of: Helicia nortoniana
- Cyanotis axillaris
- Cyanthillium cinereum
- Cyanthillium patulum
- Cyathostemma glabrum (Span.) Jessup ex Utteridge is a synonym of: Uvaria glabra
- Cyathostemma micranthum (A.DC.) J.Sinclair is a synonym of: Uvaria micrantha
- Cyathostemma sp. A is a synonym of: Uvaria glabra
- Cyathostemma sumatrana (Miq.) Boerl. is a synonym of: Uvaria micrantha
- Cyathula geniculata Lour. is a synonym of: Achyranthes aspera
- Cyathula prostrata
- Cybele cunninghamii (R.Br.) Kuntze is a synonym of: Stenocarpus cunninghamii
- Cybele sinuata (Loudon) Kuntze is a synonym of: Stenocarpus sinuatus
- Cycas media
- Cycas media R.Br. var. media is a synonym of: Cycas media
- Cycas silvestris
- Cyclophyllum coprosmoides
- Cyclophyllum costatum
- Cyclophyllum maritimum
- Cyclophyllum multiflorum
- Cyclophyllum protractum
- Cyclophyllum rostellatum
- Cyclophyllum schultzii
- Cylicodaphne bindoniana F.Muell. is a synonym of: Litsea bindoniana
- Cylicodaphne fawcettiana F.Muell. is a synonym of: Litsea fawcettiana
- Cylicodaphne leefeana F.Muell. is a synonym of: Litsea leefeana
- Cymbopogon ambiguus
- Cymbopogon procerus
- Cymbopogon refractus
- Cynanchum bowmanii
- Cynanchum brownianum Schult. is a synonym of: Cynanchum pedunculatum
- Cynanchum carnosum
- Cynanchum dichasiale O.Schwarz is a synonym of: Secamone elliptica
- Cynanchum erubescens R.Br. is a synonym of: Cynanchum pedunculatum
- Cynanchum leptolepis
- Cynanchum ovalifolium
- Cynanchum ovatum (Benth.) Domin is a synonym of: Cynanchum bowmanii
- Cynanchum pedunculatum
- Cynanchum viminale subsp. brunonianum
- Cynoctonum erubescens (R.Br.) Decne. is a synonym of: Cynanchum pedunculatum
- Cynoctonum pedunculatum (R.Br.) Decne. is a synonym of: Cynanchum pedunculatum
- Cynodon dactylon
- Cynoglossum australe
- Cynometra iripa
- Cynometra ramiflora
- Cynometra roseiflora
- Cynometra sp. Paira Homestead Rd (G.Sankowsky+ 1223) is a synonym of: Cynometra ramiflora
- Cynosurus aegyptius L. is a synonym of: Dactyloctenium aegyptium
- Cyperus aquatilis
- Cyperus brevifolius
- Cyperus bulbosus
- Cyperus decompositus
- Cyperus dietrichiae
- Cyperus enervis
- Cyperus gracilis
- Cyperus gracilis var. enervis (R.Br.) Kuk. is a synonym of: Cyperus enervis
- Cyperus gunnii subsp. novae-hollandiae
- Cyperus haspan subsp. juncoides
- Cyperus hyalinus
- Cyperus involucratus Poir. is a synonym of: Cyperus involucratus
- Cyperus involucratus
- Cyperus javanicus
- Cyperus juncoides Lam. is a synonym of: Cyperus haspan subsp. juncoides
- Cyperus laxus
- Cyperus mirus
- Cyperus multispiceus
- Cyperus novae-hollandiae Boeck. is a synonym of: Cyperus gunnii subsp. novae-hollandiae
- Cyperus paniceus
- Cyperus pedunculosus
- Cyperus pedunculosus F.Muell. var. pedunculosus is a synonym of: Cyperus pedunculosus
- Cyperus pedunculosus var. alatus Kuk. is a synonym of: Cyperus pedunculosus
- Cyperus pedunculosus var. atrocastaneus Kuk. is a synonym of: Cyperus pedunculosus
- Cyperus pedunculosus var. floribundus Kuk. is a synonym of: Cyperus pedunculosus
- Cyperus pedunculosus var. longebracteatus Domin is a synonym of: Cyperus pedunculosus
- Cyperus pilosus
- Cyperus polystachyos
- Cyperus sulcinux
- Cyperus tetraphyllus
- Cyperus triceps
- Cyperus trinervis
- Cyperus trinervis var. aquatilis (R.Br.) Kuk. is a synonym of: Cyperus aquatilis
- Cyperus zollingeri
- Cyphomandra betacea (Cav.) Sendtner is a synonym of: Solanum betaceum
- Cyrtandra baileyi
- Cyrtococcum accrescens
- Cyrtococcum capitis-york B.K.Simon is a synonym of: Cyrtococcum patens
- Cyrtococcum oxyphyllum
- Cyrtococcum patens
- Cyrtoptera zollingeri Rchb.f. is a synonym of: Eulophia zollingeri
- Cytisus pinnatus L. is a synonym of: Pongamia pinnata var. pinnata
D
- Dactyliophora novae-guineae
- Dactyloctenium aegyptium
- Daedalacanthus nervosus (Vahl) T. Anderson is a synonym of: Eranthemum pulchellum
- Dalbergia candenatensis
- Dalbergia densa
- Dalbergia densa Benth. var. densa is a synonym of: Dalbergia densa
- Dalbergia densa var. australis Prain is a synonym of: Dalbergia densa
- Dalbergia ferruginea
- Dalbergia monosperma Dalzell is a synonym of: Dalbergia candenatensis
- Dallachya vitiensis (Benth.) F.Muell. is a synonym of: Rhamnella vitiensis
- Dammara bidwillii Guilfoyle is a synonym of: Agathis robusta
- Dammara brownii Lemaire is a synonym of: Agathis robusta
- Dammara palmerstonii F.Muell. is a synonym of: Agathis robusta
- Dammara robusta F.Muell. is a synonym of: Agathis robusta
- Dammara robusta Parl. is a synonym of: Agathis robusta
- Dansiea elliptica
- Daphnandra apatela
- Daphnandra aromatica F.M.Bailey is a synonym of: Doryphora aromatica
- Daphnandra dielsii Perkins is a synonym of: Daphnandra repandula
- Daphnandra repandula
- Daphne indica L. is a synonym of: Wikstroemia indica
- Darlingia darlingiana
- Darlingia ferruginea
- Darlingia spectatissima F.Muell. is a synonym of: Darlingia darlingiana
- Darlingia spectatissima F.Muell. is a synonym of: Darlingia darlingiana
- Darlingia spectatissima F.Muell. var. spectatissima is a synonym of: Darlingia darlingiana
- Darlingia spectatissima var. ferruginea (J.F.Bailey) C.T.White is a synonym of: Darlingia ferruginea
- Davidsonia pruriens
- Davidsonia pungens Hort is a synonym of: Davidsonia pruriens
- Debregeasia australis
- Decaisnina angustata
- Decaisnina brittenii subsp. brittenii
- Decaisnina congesta
- Decaisnina hollrungii
- Decaisnina petiolata subsp. angustata Barlow is a synonym of: Decaisnina angustata
- Decaisnina signata
- Decalobanthus peltatus
- Decaspermum humile
- Decaspermum laxiflorum (Benth.) Domin is a synonym of: Decaspermum humile
- Decaspermum paniculatum (Lindl.) Kurz is a synonym of: Decaspermum humile
- Decaspermum paniculatum var. laxiflorum (Benth.) F.M.Bailey is a synonym of: Decaspermum humile
- Decaspermum papuanum Lauterb. is a synonym of: Pilidiostigma papuanum
- Deeringia altissima (Moq.) F.Muell. is a synonym of: Deeringia arborescens
- Deeringia amaranthoides
- Deeringia arborescens
- Deeringia baccata (Retz.) Moq. is a synonym of: Deeringia amaranthoides
- Deeringia celosioides R.Br. is a synonym of: Deeringia amaranthoides
- Deeringia indica Retz. ex. Bl. is a synonym of: Deeringia amaranthoides
- Delarbrea michieana
- Delonix regia
- Dendrocalamus forbesii Ridl. is a synonym of: Neololeba atra
- Dendrocnide corallodesme
- Dendrocnide cordifolia
- Dendrocnide moroides
- Dendrocnide photinophylla
- Dendrolobium arbuscula
- Dendrolobium sp. (Mt Scatterbrain J.R.Clarkson+ 6708) is a synonym of: Dendrolobium arbuscula
- Dendrolobium umbellatum (L.) Benth. is a synonym of: Dendrolobium umbellatum var. umbellatum
- Dendrolobium umbellatum var. umbellatum
- Dendromyza reinwardtiana
- Dendrophthoe acacioides subsp. acacioides
- Dendrophthoe congener (Sieber ex Schultes & J.H. Schultes) Martius is a synonym of: Amyema congener subsp. congener
- Dendrophthoe curvata
- Dendrophthoe discolor Barlow is a synonym of: Dendrophthoe curvata
- Dendrophthoe falcata (L.f.) Ettingsh. is a synonym of: Dendrophthoe curvata
- Dendrophthoe glabrescens
- Dendrophthoe pelargica Barlow is a synonym of: Dendrophthoe glabrescens
- Dendrophthoe vitellina
- Dendrotrophe varians
- Denhamia bilocularis
- Denhamia cunninghamii
- Denhamia disperma
- Denhamia fasciculiflora
- Denhamia heterophylla F.Muell. is a synonym of: Denhamia oleaster
- Denhamia leucocarpum Steud. is a synonym of: Denhamia obscura
- Denhamia obscura
- Denhamia oleaster
- Denhamia peninsularis
- Denhamia pittosporoides F.Muell. is a synonym of: Denhamia pittosporoides subsp. pittosporoides
- Denhamia pittosporoides subsp. pittosporoides
- Denhamia pittosporoides subsp. angustifolia
- Denhamia sp. Jardine River (B.P.Hyland 10250) is a synonym of: Denhamia peninsularis
- Denhamia viridissima
- Denhamia xanthosperma F.Muell. is a synonym of: Denhamia obscura
- Deplanchea bulweri F.Muell. is a synonym of: Deplanchea tetraphylla
- Deplanchea hirsuta (Bailey) Steenis is a synonym of: Deplanchea tetraphylla
- Deplanchea tetraphylla
- Deplanchea tetraphylla (R.Br.) F.Muell. var. tetraphylla is a synonym of: Deplanchea tetraphylla
- Derris heterophylla Backer ex K.Heyne is a synonym of: Derris trifoliata
- Derris involuta (Sprague) Sprague is a synonym of: Solori involuta
- Derris koolgibberah F.M.Bailey is a synonym of: Solori koolgibberah
- Derris koolgibberah F.M.Bailey subsp. koolgibberah is a synonym of: Solori koolgibberah
- Derris nesiotes (Bailey) Domin is a synonym of: Austrosteenisia blackii
- Derris sp. Claudie River (L.J.Webb 8348)
- Derris sp. Daintree (D.E.Boyland 469)
- Derris sp. Wenlock River (B.Hyland 21082V)
- Derris trifoliata
- Derris trifoliata var. macrocarpa Domin is a synonym of: Derris trifoliata
- Derris uliginosa (DC.) Benth. is a synonym of: Derris trifoliata
- Desmodium arbuscula Domin is a synonym of: Dendrolobium arbuscula
- Desmodium dependens Blume ex Miq. is a synonym of: Hanslia ormocarpoides
- Desmodium gangeticum
- Desmodium gunnii
- Desmodium heterocarpon var. strigosum
- Desmodium intortum
- Desmodium macrocarpum
- Desmodium nemorosum
- Desmodium ormocarpoides DC. is a synonym of: Hanslia ormocarpoides
- Desmodium tenax
- Desmodium tortuosum
- Desmodium trichostachyum
- Desmodium umbellatum (L.) DC. is a synonym of: Dendrolobium umbellatum var. umbellatum
- Desmos goezeanus
- Desmos polycarpus
- Desmos sp. (Mossman River LWJ 550) is a synonym of: Desmos polycarpus
- Desmos wardianus
- Dianella atraxis
- Dianella bambusifolia
- Dianella caerulea Sims is a synonym of: Dianella caerulea var. caerulea
- Dianella caerulea Sims f. caerulea is a synonym of: Dianella caerulea var. caerulea
- Dianella caerulea var. caerulea
- Dianella caerulea var. assera
- Dianella longifolia var. longifolia
- Dianella odorata
- Dianella pavopennacea var. major
- Dias octandra L. is a synonym of: Phaleria octandra
- Diasperus subcrenulatus (F.Muell.) Kuntze is a synonym of: Phyllanthus subcrenulatus
- Diatoma brachiata Lour. is a synonym of: Carallia brachiata
- Dichapetalum australianum C.T.White is a synonym of: Dichapetalum papuanum
- Dichapetalum papuanum
- Dichapetalum papuanum (Becc.) Boerl. subsp. papuanum is a synonym of: Dichapetalum papuanum
- Dichapetalum timoriense
- Dichrocephala integrifolia
- Dicliptera ciliata
- Dicliptera racemifica F.Muell. is a synonym of: Dicliptera spicata
- Dicliptera spicata
- Dictyoneura bamleri K.Schum. & Lauterb. is a synonym of: Dictyoneura obtusa
- Dictyoneura microcarpa Radlk. is a synonym of: Dictyoneura obtusa
- Dictyoneura obtusa
- Didiscus procumbens var. hookeri Domin is a synonym of: Trachymene tenuifolia
- Didiscus tenuifolius Domin is a synonym of: Trachymene tenuifolia
- Didymocarpus kinnearii F.Muell. is a synonym of: Boea kinnearii
- Didymocheton gaudichaudianum A.Juss. is a synonym of: Dysoxylum gaudichaudianum
- Didymosperma microcarpum (Becc.) Warb. ex K.Schum. & Lauterb. is a synonym of: Arenga microcarpa
- Dillenia alata
- Dillenia andreana F.Muell. is a synonym of: Saurauia andreana
- Dillenia scandens Willd. is a synonym of: Hibbertia scandens
- Dillenia volubilis (Andrews) Vent. is a synonym of: Hibbertia scandens
- Dimocarpus australianus
- Dimocarpus longan
- Dimorphocalyx australiensis
- Dinghoua globularis
- Dinosperma erythrococcum
- Dinosperma longifolium
- Dinosperma melanophloium
- Dinosperma stipitatum
- Dioclea hexandra
- Dioclea reflexa Hook.f. is a synonym of: Dioclea hexandra
- Dioclea reflexa var. australiensis Domin is a synonym of: Dioclea hexandra
- Dioscorea alata
- Dioscorea bulbifera L. is a synonym of: Dioscorea bulbifera var. bulbifera
- Dioscorea bulbifera var. bulbifera
- Dioscorea lucida R.Br. is a synonym of: Stemona lucida
- Dioscorea punctata R.Br. is a synonym of: Dioscorea transversa
- Dioscorea sativa L. is a synonym of: Dioscorea bulbifera var. bulbifera
- Dioscorea sativa var. rotunda F.M.Bailey is a synonym of: Dioscorea bulbifera var. bulbifera
- Dioscorea transversa
- Diospyros areolifolia
- Diospyros australis
- Diospyros calycantha
- Diospyros compacta
- Diospyros cordifolia Roxb. is a synonym of: Diospyros rugosula
- Diospyros cupulosa (F.Muell.) F.Muell. is a synonym of: Diospyros laurina
- Diospyros fasciculosa
- Diospyros ferrea var. compacta (R.Br.) Fosberg is a synonym of: Diospyros compacta
- Diospyros ferrea var. geminata (R.Br.) Bakh. is a synonym of: Diospyros geminata
- Diospyros ferrea var. humilis (R.Br.) Bakh. is a synonym of: Diospyros humilis
- Diospyros geminata
- Diospyros granitica
- Diospyros hebecarpa
- Diospyros hemicycloides
- Diospyros humilis
- Diospyros laurina
- Diospyros littorea
- Diospyros longipes Hiern is a synonym of: Mimusops elengi
- Diospyros maritima
- Diospyros peninsularis
- Diospyros pentamera
- Diospyros pluviatilis
- Diospyros rheophila
- Diospyros rugosula
- Diospyros seriocarpa F.Muell. is a synonym of: Diospyros laurina
- Diospyros sp. Baird LA (B.P.Hyland 9374) is a synonym of: Diospyros rheophila
- Diospyros sp. Bamaga (B.P.Hyland 2517) is a synonym of: Diospyros peninsularis
- Diospyros sp. Ham Hill (B.Hyland 2941RFK)
- Diospyros sp. Millaa Millaa (L.W. Jessup 515) is a synonym of: Diospyros pluviatilis
- Diospyros sp. Mt Lewis (L.S.Smith 10107) is a synonym of: Diospyros hemicycloides
- Diospyros sp. Mt Spurgeon (C.T.White 10677) is a synonym of: Diospyros granitica
- Diospyros sp. Mt White (P.I.Forster 14415) is a synonym of: Diospyros compacta
- Diospyros sp. Swipers LA (B.Hyland 1984RFK) is a synonym of: Diospyros uvida
- Diospyros uvida
- Diplanthera hirsuta F.M.Bailey is a synonym of: Deplanchea tetraphylla
- Diplanthera tetraphylla R.Br. is a synonym of: Deplanchea tetraphylla
- Diplatia furcata
- Diplatia tomentosa
- Diplocyclos palmatus
- Diplocyclos palmatus (L.) C.Jeffrey subsp. palmatus is a synonym of: Diplocyclos palmatus
- Diplocyclos palmatus subsp. palmatus P.S.Green is a synonym of: Diplocyclos palmatus
- Diploglottis alaticarpa
- Diploglottis australis var. muelleri (Bailey) Radlk. is a synonym of: Diploglottis diphyllostegia
- Diploglottis bernieana
- Diploglottis bracteata
- Diploglottis cunninghamii var. diphyllostegia J.F.Bailey is a synonym of: Diploglottis diphyllostegia
- Diploglottis cunninghamii var. muelleri F.M.Bailey is a synonym of: Diploglottis diphyllostegia
- Diploglottis diphyllostegia
- Diploglottis harpullioides
- Diploglottis macrantha
- Diploglottis obovata
- Diploglottis pedleyi
- Diploglottis smithii
- Diplospora australis Benth. is a synonym of: Triflorensia australis
- Diplospora ixoroides F.Muell. is a synonym of: Triflorensia ixoroides
- Dipodium pandanum F.M.Bailey is a synonym of: Dipodium pictum
- Dipodium pictum
- Diporidium serrulatum Hochst. is a synonym of: Ochna serrulata
- Dipteracanthus australasicus subsp. australasicus
- Dischidia baeuerlenii Schltr. is a synonym of: Dischidia major
- Dischidia litoralis
- Dischidia major
- Dischidia nummularia
- Dischidia ovata
- Dischidia rafflesiana Wall. is a synonym of: Dischidia major
- Disemma brachystephanea F.Muell. is a synonym of: Passiflora aurantia var. aurantia
- Disemma caleyana (DC.) M.Roem. is a synonym of: Passiflora herbertiana
- Disemma coccinea DC. is a synonym of: Passiflora aurantia var. aurantia
- Disemma herbertiana DC. is a synonym of: Passiflora herbertiana
- Disemma herbertiana DC. var. herbertiana is a synonym of: Passiflora herbertiana
- Disemma herbertiana var. caleyana DC. is a synonym of: Passiflora herbertiana
- Dissiliaria baloghioides
- Dissiliaria indistincta
- Dissiliaria laxinervis
- Dissiliaria surculosa
- Dissiliaria tricornis Benth. is a synonym of: Choriceras tricorne
- Dissiliaria tuckeri
- Dissotis rotundifolia
- Distimake dissectus
- Distimake quinquefolius
- Distimake tuberosus
- Dodonaea dioica DC. is a synonym of: Dodonaea triquetra
- Dodonaea hansenii F.Muell. is a synonym of: Dodonaea platyptera
- Dodonaea lanceolata var. lanceolata
- Dodonaea lanceolata var. subsessilifolia
- Dodonaea laurifolia Sieber ex Loudon is a synonym of: Dodonaea triquetra
- Dodonaea laurina Sieber ex A.Sprengel is a synonym of: Dodonaea triquetra
- Dodonaea longipes G.Don is a synonym of: Dodonaea triquetra
- Dodonaea platyptera
- Dodonaea polyandra
- Dodonaea triquetra
- Dodonaea viscosa Jacq. is a synonym of: Dodonaea viscosa subsp. viscosa
- Dodonaea viscosa subsp. viscosa
- Dodonaea viscosa var. laurina Britten is a synonym of: Dodonaea polyandra
- Dodonea viscosa var. vulgaris f. burmanniana subf. laurina (Britten) Radlk. is a synonym of: Dodonaea polyandra
- Dolichandrone spathacea
- Dolichos axillare E.Mey. is a synonym of: Macrotyloma axillare
- Dolichos erosus L. is a synonym of: Pachyrhizus erosus
- Dolichos giganteus Willd. is a synonym of: Mucuna gigantea subsp. gigantea
- Dolichos lobatus Willd. is a synonym of: Pueraria lobata
- Dolichos minimus L. is a synonym of: Rhynchosia minima
- Dolichos phaseoloides Wall. ex Roxb. is a synonym of: Pueraria phaseoloides
- Dolichos reticulatus Aiton is a synonym of: Cajanus reticulatus
- Dolichos roseus Sw. is a synonym of: Canavalia rosea
- Dolichos uniflorus Lam. is a synonym of: Macrotyloma uniflorum
- Donella lanceolata
- Doryphora aromatica
- Dracaena terminalis (L.) Jacq. is a synonym of: Cordyline fruticosa
- Dracontium paeoniifolium Dennst. is a synonym of: Amorphophallus paeoniifolius
- Dracophyllum sayeri
- Dracophyllum sayeri F.Muell. var. sayeri is a synonym of: Dracophyllum sayeri
- Dracophyllum sayeri var. normale F.M.Bailey is a synonym of: Dracophyllum sayeri
- Dracophyllum sayeri var. reflexum F.M.Bailey is a synonym of: Dracophyllum sayeri
- Drimys insipida (R.Br. ex DC.) Pilg. is a synonym of: Tasmannia insipida
- Drimys membranea F.Muell. is a synonym of: Tasmannia membranea
- Drimys oblonga S.Moore is a synonym of: Hypsophila halleyana
- Drimys semecarpoides F.Muell. is a synonym of: Bubbia semecarpoides
- Drimyspermum neumanni F.Muell. is a synonym of: Phaleria octandra
- Drosera adelae
- Drosera lunata
- Drosera prolifera
- Drosera schizandra
- Dryadodaphne novoguineensis (J.R. Perkins)) A.C. Sm. is a synonym of: Dryadodaphne trachyphloia
- Dryadodaphne sp. (Mt Lewis BH 1496RFK) is a synonym of: Dryadodaphne trachyphloia
- Dryadodaphne trachyphloia
- Drymaria cordata
- Drymophloeus normanbyi (W.Hill) F.M.Bailey is a synonym of: Normanbya normanbyi
- Drymyspermum clerodendron F.Muell. is a synonym of: Phaleria clerodendron
- Drypetes acuminata
- Drypetes australasica (Mull.Arg.) Pax & K.Hoffm. is a synonym of: Drypetes deplanchei
- Drypetes deplanchei
- Drypetes deplanchei (Brongn. & Griseb.) Merr. subsp. deplanchei is a synonym of: Drypetes deplanchei
- Drypetes deplanchei subsp. affinis (Pax & Hoffm.) P.S.Green is a synonym of: Drypetes deplanchei
- Drypetes iodoformis
- Drypetes lasiogyna (F.Muell.) Pax & K.Hoffm. is a synonym of: Drypetes deplanchei
- Drypetes lasiogyna (F.Muell.) Pax & K.Hoffm. var. lasiogyna is a synonym of: Drypetes deplanchei
- Drypetes lasiogyna var. australasica (Mull.Arg.) Airy Shaw is a synonym of: Drypetes acuminata
- Drypetes subcubida Pax & K.Hoffm. is a synonym of: Drypetes iodoformis
- Drypetes vernicosa
- Duboisia myoporoides
- Duckera taitensis (Guillemin) F.Barkley is a synonym of: Rhus taitensis
- Durandea jenkinsii (F.Muell.) Stapf is a synonym of: Hugonia jenkinsii
- Duranta erecta
- Duranta plumieri f. variegata F.M.Bailey is a synonym of: Duranta erecta
- Duranta plumieri Jacq. is a synonym of: Duranta erecta
- Duranta plumieri var. alba F.M.Bailey is a synonym of: Duranta erecta
- Duranta plumieri var. ellisia F.M.Bailey is a synonym of: Duranta erecta
- Duranta plumieri var. normalis F.M.Bailey is a synonym of: Duranta erecta
- Duranta repens f. variegata (Bailey) Domin is a synonym of: Duranta erecta
- Duranta repens L. is a synonym of: Duranta erecta
- Duranta repens var. alba Domin is a synonym of: Duranta erecta
- Duranta repens var. ellisia (Bailey) Domin is a synonym of: Duranta erecta
- Duranta repens var. normalis (Bailey) Domin is a synonym of: Duranta erecta
- Dysoxylum acutangulum Miq. is a synonym of: Dysoxylum oppositifolium
- Dysoxylum acutangulum subsp. foveolatum
- Dysoxylum alliaceum
- Dysoxylum amooroides Miq. is a synonym of: Dysoxylum gaudichaudianum
- Dysoxylum arborescens
- Dysoxylum cerebriforme F.M.Bailey is a synonym of: Dysoxylum setosum
- Dysoxylum decandrum (Blanco) Merr. is a synonym of: Dysoxylum gaudichaudianum
- Dysoxylum densevestitum C.T.White & W.D.Francis is a synonym of: Dysoxylum parasiticum
- Dysoxylum foveolatum Radlk. is a synonym of: Dysoxylum acutangulum subsp. foveolatum
- Dysoxylum gaudichaudianum
- Dysoxylum klanderi
- Dysoxylum latifolium
- Dysoxylum micranthum Merr. & L.M.Perry is a synonym of: Dysoxylum papuanum
- Dysoxylum molle Miq. is a synonym of: Dysoxylum mollissimum subsp. molle
- Dysoxylum mollissimum Blume is a synonym of: Dysoxylum mollissimum subsp. molle
- Dysoxylum mollissimum subsp. molle
- Dysoxylum muelleri Benth. is a synonym of: Dysoxylum mollissimum subsp. molle
- Dysoxylum nernstii F.Muell. is a synonym of: Dysoxylum arborescens
- Dysoxylum oppositifolium
- Dysoxylum papuanum
- Dysoxylum parasiticum
- Dysoxylum pettigrewianum
- Dysoxylum pumilum
- Dysoxylum rufum
- Dysoxylum rufum var. glabrescens Benth. is a synonym of: Dysoxylum gaudichaudianum
- Dysoxylum schiffneri F.Muell. is a synonym of: Dysoxylum parasiticum
- Dysoxylum schultzii C.DC. is a synonym of: Dysoxylum acutangulum subsp. foveolatum
- Dysoxylum schulzii C.DC. is a synonym of: Dysoxylum oppositifolium
- Dysoxylum sericiflorum C.T.White is a synonym of: Dysoxylum setosum
- Dysoxylum setosum
- Dysoxylum sp. Gosschalk LA (BG 786) is a synonym of: Dysoxylum pumilum
- Dysphania carinata
E
- Earlia excelsa F.Muell. is a synonym of: Graptophyllum excelsum
- Ebenus compacta (R.Br.) Kuntze is a synonym of: Diospyros compacta
- Ebenus fasciculosa (F.Muell.) Kuntze is a synonym of: Diospyros fasciculosa
- Ebenus geminata (R.Br.) Kuntze is a synonym of: Diospyros geminata
- Ebenus hemicycloides (F.Muell. ex Benth.) Kuntze is a synonym of: Diospyros hemicycloides
- Ebenus humilis (R.Br.) Kuntze is a synonym of: Diospyros humilis
- Ebenus obovata (R.Br.) Kuntze is a synonym of: Diospyros humilis
- Ecbolium cavernarum (F.Muell.) Kuntze is a synonym of: Rhaphidospora cavernarum
- Echinocarpus langii F.Muell. is a synonym of: Sloanea langii
- Echinocarpus macbrydei F.Muell. is a synonym of: Sloanea macbrydei
- Echinocroton claoxyloides F.Muell. is a synonym of: Mallotus claoxyloides
- Echinus claoxyloides (F.Muell.) Baill. is a synonym of: Mallotus claoxyloides
- Echinus claoxyloides (F.Muell.) Baill. var. claoxyloides is a synonym of: Mallotus claoxyloides
- Echinus claoxyloides var. cordata Baill. is a synonym of: Mallotus claoxyloides
- Echinus claoxyloides var. ficifolius Baill. is a synonym of: Mallotus ficifolius
- Echinus claoxyloides var. genuina Baill. is a synonym of: Mallotus claoxyloides
- Echinus dallachyanus Baill. is a synonym of: Macaranga dallachyana
- Echinus mollissimus (Geiseler) Baill. is a synonym of: Mallotus mollissimus
- Echinus nesophilus (Mull.Arg.) Baill. is a synonym of: Mallotus nesophilus
- Echinus philippensis (Lam.) Baill. is a synonym of: Mallotus philippensis
- Echites frutescens (L.) Roxb. is a synonym of: Ichnocarpus frutescens
- Echites laevigata Moon is a synonym of: Parsonsia alboflavescens
- Echites lanceloata (R.Br.) Spreng. is a synonym of: Parsonsia lanceolata
- Echites mollis (R.Br.) Spreng. is a synonym of: Parsonsia lanceolata
- Echites velutina Spreng. is a synonym of: Parsonsia velutina
- Echtes scholaris L. is a synonym of: Alstonia scholaris
- Eclipta prostrata
- Eclipta prostrata L. is a synonym of: Eclipta prostrata
- Ehretia acuminata var. pyrifolia
- Ehretia grahamii
- Ehretia membranifolia R.Br. is a synonym of: Ehretia saligna var. membranifolia
- Ehretia microphylla
- Ehretia pyrifolia D.Don is a synonym of: Ehretia acuminata var. pyrifolia
- Ehretia saligna R.Br. is a synonym of: Ehretia saligna var. saligna
- Ehretia saligna var. saligna
- Ehretia saligna var. membranifolia
- Ehretia sp. Whitfield Range (R.Jago 17)
- Eidothea zoexylocarya
- Einadia hastata
- Elaeagnus latifolia L. is a synonym of: Elaeagnus triflora
- Elaeagnus triflora
- Elaeocarpus angustifolius
- Elaeocarpus arnhemicus
- Elaeocarpus bancroftii
- Elaeocarpus carbinensis
- Elaeocarpus carolinae
- Elaeocarpus concinnus S.Moore is a synonym of: Aceratium concinnum
- Elaeocarpus coorangooloo
- Elaeocarpus corymbifer Domin is a synonym of: Aceratium megalospermum
- Elaeocarpus culminicola
- Elaeocarpus deplanchei Brongn. & Gris is a synonym of: Drypetes deplanchei
- Elaeocarpus drymophilus Domin is a synonym of: Elaeocarpus angustifolius
- Elaeocarpus elliffii
- Elaeocarpus eumundi
- Elaeocarpus ferruginiflorus
- Elaeocarpus foveolatus
- Elaeocarpus grahamii
- Elaeocarpus grandis
- Elaeocarpus hylobroma
- Elaeocarpus johnsonii
- Elaeocarpus kirtonii
- Elaeocarpus largiflorens C.T.White is a synonym of: Elaeocarpus largiflorens subsp. largiflorens
- Elaeocarpus largiflorens subsp. largiflorens
- Elaeocarpus largiflorens subsp. retinervis
- Elaeocarpus linsmithii
- Elaeocarpus longipetiolatus C.T.White is a synonym of: Elaeocarpus culminicola
- Elaeocarpus michaelii C.T.White is a synonym of: Elaeocarpus culminicola
- Elaeocarpus miegei
- Elaeocarpus obovatus
- Elaeocarpus obovatus var. (?) foveolatus Benth. is a synonym of: Elaeocarpus arnhemicus
- Elaeocarpus petiolosus F.Muell. is a synonym of: Elaeocarpus ruminatus
- Elaeocarpus ruminatus
- Elaeocarpus sericopetalus
- Elaeocarpus sp. Mossman Bluff (D.Fell 1666) is a synonym of: Elaeocarpus hylobroma
- Elaeocarpus sp. Mt Bellenden Ker (L.J.Brass 18336)
- Elaeocarpus sp. Mt Spurgeon (B.Hyland 2907RFK) is a synonym of: Elaeocarpus carbinensis
- Elaeocarpus sp. Windsor Tableland (B.Hyland 5541)
- Elaeocarpus stellaris
- Elaeocarpus thelmae
- Elaeodendron australe var. angustifolium Benth. is a synonym of: Elaeodendron australe var. integrifolium
- Elaeodendron australe var. integrifolium
- Elaeodendron australe Vent. is a synonym of: Elaeodendron australe var. australe
- Elaeodendron australe var. _integrifolium
- Elaeodendron integrifolium (Tratt.) Sweet is a synonym of: Elaeodendron australe var. _integrifolium
- Elaeodendron melanocarpum
- Elaeodendron microcarpum C.T.White & W.D.Francis is a synonym of: Pleurostylia opposita
- Elatostema pedunculatum J.R.Forst. & G.Forst. is a synonym of: Procris pedunculata
- Elatostema reticulatum
- Elattostachys megalantha
- Elattostachys microcarpa
- Elattostachys xylocarpa
- Eleocharis ochrostachys
- Elephantopus scaber
- Elephantopus spicatus B. Juss. ex Aubl. is a synonym of: Pseudelephantopus spicatus
- Elettaria scottiana F.Muell. is a synonym of: Hornstedtia scottiana
- Eleutheranthera ruderalis
- Elytranthe dictyophleba (F. Muell.) Engl. is a synonym of: Amylotheca dictyophleba
- Elytranthe hollrungii (Schumann) Engl. is a synonym of: Decaisnina hollrungii
- Elytranthe signata (F. Muell. ex Benth.) Engl. is a synonym of: Decaisnina signata
- Embelia australiana
- Embelia caulialata
- Embelia curvinervia
- Embelia grayi
- Embothrium wickhamii F.Muell. is a synonym of: Alloxylon wickhamii
- Emilia sonchifolia var. sonchifolia
- Emmenosperma alphitonioides
- Emmenosperma cunninghamii
- Endiandra acuminata
- Endiandra anthropophagorum
- Endiandra bellendenkerana
- Endiandra bessaphila
- Endiandra collinsii
- Endiandra compressa
- Endiandra cooperana
- Endiandra cowleyana
- Endiandra dichrophylla
- Endiandra dielsiana
- Endiandra discolor
- Endiandra exostemonea F.Muell. is a synonym of: Endiandra insignis
- Endiandra glandulosa Allen is a synonym of: Endiandra dielsiana
- Endiandra glauca
- Endiandra globosa
- Endiandra grayi
- Endiandra hypotephra
- Endiandra impressicosta
- Endiandra inopinata
- Endiandra insignis
- Endiandra jonesii
- Endiandra leptodendron
- Endiandra limnophila
- Endiandra longipedicellata
- Endiandra merrilliana Allen is a synonym of: Endiandra glauca
- Endiandra microneura
- Endiandra monothyra B.Hyland is a synonym of: Endiandra monothyra subsp. monothyra
- Endiandra monothyra subsp. monothyra
- Endiandra monothyra subsp. trichophylla
- Endiandra montana
- Endiandra muelleri subsp. bracteata
- Endiandra palmerstonii
- Endiandra phaeocarpa
- Endiandra reticulata C.T.White is a synonym of: Endiandra microneura
- Endiandra sankeyana
- Endiandra sideroxylon
- Endiandra subtriplinervis C.T.White & W.D.Francis is a synonym of: Endiandra acuminata
- Endiandra tooram F.M.Bailey is a synonym of: Beilschmiedia tooram
- Endiandra wolfei
- Endiandra xanthocarpa
- Endospermum medullosum L.S.Sm. is a synonym of: Endospermum myrmecophilum
- Endospermum myrmecophilum
- Endressia wardellii (F.Muell.) Whiffin is a synonym of: Pendressia wardellii
- Entada gogo (Blanco) I.M.Johnston is a synonym of: Entada rheedei
- Entada monostachya DC. is a synonym of: Entada rheedei
- Entada phaseoloides
- Entada pursaetha DC. is a synonym of: Entada rheedei
- Entada rheedei
- Entada scandens (L.) Benth. is a synonym of: Entada phaseoloides
- Entada scandens var. aequilatera Domin is a synonym of: Entada rheedei
- Epicharis densevestita Harms is a synonym of: Dysoxylum parasiticum
- Epicharis schiffneri (F.Muell.) Harms is a synonym of: Dysoxylum parasiticum
- Epicharis setosa Span. is a synonym of: Dysoxylum setosum
- Epipogium Guilfoylii Benth. is a synonym of: Epipogium roseum
- Epipogium nutans (Blume) H.G. Reichb. is a synonym of: Epipogium roseum
- Epipogium roseum
- Epipremnum amplissimum
- Epipremnum angustilobum K.Krause is a synonym of: Epipremnum pinnatum
- Epipremnum aureum (L.Linden & Andre) G.S.Bunting is a synonym of: Epipremnum pinnatum cv. Aureum
- Epipremnum elegans Engl. is a synonym of: Epipremnum pinnatum
- Epipremnum glaucicephalum Elmer is a synonym of: Epipremnum pinnatum
- Epipremnum merrillii Engl. is a synonym of: Epipremnum pinnatum
- Epipremnum mirable Schott is a synonym of: Epipremnum pinnatum
- Epipremnum pinnatum
- Epipremnum pinnatum cv. Aureum
- Epipremnum pinnatum f. eporforatum (Engl.) Engl. is a synonym of: Epipremnum pinnatum
- Epipremnum pinnatum f. multisectum (Engl.) Engl. is a synonym of: Epipremnum pinnatum
- Eragrostis cumingii
- Eranthemum pulchellum
- Eranthemum variabile R.Br. is a synonym of: Pseuderanthemum variabile
- Erechtites valerianifolius (Link ex Spreng.) DC. is a synonym of: Erechtites valerianifolius f. valerianifolius
- Erechtites valerianifolius f. valerianifolius
- Eriachne pallescens
- Erigeron canadensis
- Erigeron leucanthus D.Don is a synonym of: Eschenbachia leucantha
- Erigeron sumatrensis
- Erinus procumbens Mill. is a synonym of: Mecardonia procumbens
- Eriostemon australasius subsp. banksii (Endl.) Paul G.Wilson is a synonym of: Eriostemon banksii
- Eriostemon banksii
- Eriostemon kendack Montrouz. is a synonym of: Halfordia kendack
- Erithalis timon Spreng. is a synonym of: Timonius timon var. timon
- Ervatamia angustisepala (Benth.) Domin is a synonym of: Tabernaemontana pandacaqui
- Ervatamia benthamiana Domin is a synonym of: Tabernaemontana pandacaqui
- Ervatamia orientalis (R.Br.) Domin is a synonym of: Tabernaemontana orientalis
- Ervatamia pandacaqui (Lam .) Pichon is a synonym of: Tabernaemontana pandacaqui
- Ervatamia pubescens (R.Br.) Domin is a synonym of: Tabernaemontana orientalis
- Ervatamia pubescens (R.Br.) Domin var. pubescens is a synonym of: Tabernaemontana orientalis
- Ervatamia pubescens var. grandiflora Domin is a synonym of: Tabernaemontana orientalis
- Ervatamia pubescens var. superba Domin is a synonym of: Tabernaemontana orientalis
- Ervatamia pubescens var. typica Domin is a synonym of: Tabernaemontana orientalis
- Erycibe coccinea
- Erycibe paniculata var. coccinea F.M.Bailey is a synonym of: Erycibe coccinea
- Erythrina biloba F.Muell. is a synonym of: Erythrina vespertilio
- Erythrina indica var. phlebocarpa (Bailey) Domin is a synonym of: Erythrina variegata
- Erythrina insularis
- Erythrina phlebocarpa F.M.Bailey is a synonym of: Erythrina variegata
- Erythrina variegata
- Erythrina vespertilio
- Erythrina vespertilio Benth. var. vespertilio is a synonym of: Erythrina vespertilio
- Erythrina vespertilio var. biloba (F.Muell.) Domin is a synonym of: Erythrina vespertilio
- Erythrina vespertilio var. typica Domin is a synonym of: Erythrina vespertilio
- Erythrocarpus glomerulatus Bl. is a synonym of: Suregada glomerulata
- Erythrophleum chlorostachys
- Erythrophleum laboucherii F.Muell. is a synonym of: Erythrophleum chlorostachys
- Erythrophloeum laboucherii F.Muell. ex Benth. is a synonym of: Erythrophleum chlorostachys
- Erythroxylum australe
- Erythroxylum ecarinatum Burck is a synonym of: Erythroxylum sp. Brewer LA (B.Hyland 13373)
- Erythroxylum ecarinatum Hochr. is a synonym of: Erythroxylum sp. Brewer LA (B.Hyland 13373)
- Erythroxylum nottii J.Clarkson MS is a synonym of: Erythroxylum sp. Brewer LA (B.Hyland 13373)
- Erythroxylum sp. Brewer LA (B.Hyland 13373)
- Erythroxylum sp. Cape York (EC 20162) is a synonym of: Erythroxylum sp. Mosquito Point (J.R.Clarkson 9991)
- Erythroxylum sp. Mosquito Point (J.R.Clarkson 9991)
- Eschenbachia leucantha
- Etlingera australasica
- Eucalyptus biterranea L.A.S.Johnson & K.D.Hill is a synonym of: Eucalyptus pellita
- Eucalyptus crebra
- Eucalyptus grandis
- Eucalyptus houseana
- Eucalyptus intermedia R.T.Baker is a synonym of: Corymbia intermedia
- Eucalyptus macta L.A.S.Johnson & K.D.Hill is a synonym of: Eucalyptus resinifera subsp. resinifera
- Eucalyptus pellita
- Eucalyptus resinifera Sm. is a synonym of: Eucalyptus resinifera subsp. resinifera
- Eucalyptus resinifera subsp. resinifera
- Eucalyptus tereticornis Sm. is a synonym of: Eucalyptus tereticornis subsp. tereticornis
- Eucalyptus tereticornis subsp. tereticornis
- Eucalyptus tessellaris F.Muell. is a synonym of: Corymbia tessellaris
- Eucalyptus torelliana F.Muell. is a synonym of: Corymbia torelliana
- Eucryphia wilkiei
- Eugenia acutangula L. is a synonym of: Barringtonia acutangula subsp. acutangula
- Eugenia angophoroides F.Muell. is a synonym of: Syzygium angophoroides
- Eugenia apodophylla F.Muell. is a synonym of: Syzygium apodophyllum
- Eugenia aquea Burm. f. is a synonym of: Syzygium aqueum
- Eugenia armstrongii Benth. is a synonym of: Syzygium armstrongii
- Eugenia australis H.L.Wendl. ex Link is a synonym of: Syzygium australe
- Eugenia banksii (Britten & S.Moore ex S.Moore) B.Hyland is a synonym of: Syzygium banksii
- Eugenia brassii Merr. & L.M.Perry is a synonym of: Pilidiostigma papuanum
- Eugenia buettnerana K.Schum. in K.Schum. & Hollr. is a synonym of: Syzygium buettnerianum
- Eugenia bungadinnia F.M.Bailey is a synonym of: Syzygium bungadinnia
- Eugenia carissoides F.Muell. is a synonym of: Eugenia reinwardtiana
- Eugenia cerasoides Roxb. is a synonym of: Syzygium nervosum
- Eugenia claviflora Roxb. is a synonym of: Syzygium claviflorum
- Eugenia claviflora var. leptalea (Craib) M.R.Hend. is a synonym of: Syzygium claviflorum
- Eugenia coolminiana C.Moore is a synonym of: Syzygium oleosum
- Eugenia cormiflora F.Muell. is a synonym of: Syzygium cormiflorum
- Eugenia corynantha F.Muell. is a synonym of: Syzygium corynanthum
- Eugenia cryptophlebia F.Muell. is a synonym of: Syzygium cryptophlebium
- Eugenia cyanocarpa F.Muell. is a synonym of: Syzygium oleosum
- Eugenia dallachiana F. Muell ex Benth. is a synonym of: Gossia dallachiana
- Eugenia elliptica Smith is a synonym of: Syzygium smithii
- Eugenia erythrocalyx C.T.White is a synonym of: Syzygium erythrocalyx
- Eugenia erythrodoxa S.Moore is a synonym of: Syzygium erythrodoxum
- Eugenia essingtoniana S.Moore is a synonym of: Syzygium minutuliflorum
- Eugenia fibrosa F.M.Bailey is a synonym of: Syzygium fibrosum
- Eugenia fortis F.Muell. is a synonym of: Syzygium forte subsp. forte
- Eugenia gustavioides F.M.Bailey is a synonym of: Syzygium gustavioides
- Eugenia hedraiophylla F.Muell. is a synonym of: Syzygium hedraiophyllum
- Eugenia hemilampra F.Muell. is a synonym of: Syzygium hemilamprum subsp. hemilamprum
- Eugenia hislopii F.M.Bailey is a synonym of: Syzygium cormiflorum
- Eugenia holtzei F.Muell. is a synonym of: Syzygium nervosum
- Eugenia hypospodia F.Muell. is a synonym of: Eugenia reinwardtiana
- Eugenia jambosoides (Lauterb.) O.Schwarz is a synonym of: Syzygium suborbiculare
- Eugenia johnsonii F.Muell. is a synonym of: Syzygium johnsonii
- Eugenia kuranda F.M.Bailey is a synonym of: Syzygium kuranda
- Eugenia leptalea Craib is a synonym of: Syzygium claviflorum
- Eugenia leptantha var. parvifolia F.M.Bailey is a synonym of: Syzygium canicortex
- Eugenia leptantha Wight is a synonym of: Syzygium claviflorum
- Eugenia luehmannii F.Muell. is a synonym of: Syzygium luehmannii
- Eugenia macoorai F.M.Bailey is a synonym of: Syzygium cryptophlebium
- Eugenia macrohila C.T.White & W.D.Francis is a synonym of: Eugenia reinwardtiana
- Eugenia malaccensis L. is a synonym of: Syzygium malaccense
- Eugenia minutuliflora F.Muell. is a synonym of: Syzygium minutuliflorum
- Eugenia myrsinocarpa F. Mueller is a synonym of: Gossia myrsinocarpa
- Eugenia oleosa F.Muell. is a synonym of: Syzygium oleosum
- Eugenia operculata Roxb. is a synonym of: Syzygium nervosum
- Eugenia parvifolia C. Moore is a synonym of: Syzygium luehmannii
- Eugenia petriei C.T.White & W.D.Francis is a synonym of: Syzygium johnsonii
- Eugenia punctulata F.M.Bailey is a synonym of: Syzygium corynanthum
- Eugenia racemoides Greves is a synonym of: Lindsayomyrtus racemoides
- Eugenia racemosa L. is a synonym of: Barringtonia racemosa
- Eugenia rariflora Benth. is a synonym of: Eugenia reinwardtiana
- Eugenia reinwardtiana
- Eugenia rhadinanthera S.Moore is a synonym of: Syzygium cryptophlebium
- Eugenia sayeri F.Muell. is a synonym of: Syzygium sayeri
- Eugenia simmondsiae F.M.Bailey is a synonym of: Syzygium australe
- Eugenia smithii Poir. is a synonym of: Syzygium smithii
- Eugenia smithii var. coriacea Domin is a synonym of: Syzygium smithii
- Eugenia smithii var. minor Maiden is a synonym of: Syzygium smithii
- Eugenia sordida F.M.Bailey is a synonym of: Syzygium cryptophlebium
- Eugenia subopposita F.M.Bailey is a synonym of: Syzygium wilsonii subsp. wilsonii
- Eugenia suborbicularis Benth. is a synonym of: Syzygium suborbiculare
- Eugenia theodori-wolfii Domin is a synonym of: Syzygium tierneyanum
- Eugenia tierneyana F.Muell. is a synonym of: Syzygium tierneyanum
- Eugenia trachyphloia C.T.White is a synonym of: Syzygium trachyphloium
- Eugenia wilsonii F.Muell. is a synonym of: Syzygium wilsonii subsp. wilsonii
- Eulophia carrii C. T. White is a synonym of: Eulophia zollingeri
- Eulophia zollingeri
- Eumachia frutescens
- Euodia acronychioides F.Muell. is a synonym of: Acronychia acronychioides
- Euodia alata F.Muell. is a synonym of: Melicope xanthoxyloides
- Euodia bakeriana Domin is a synonym of: Melicope xanthoxyloides
- Euodia bonwickii F.Muell. is a synonym of: Melicope bonwickii
- Euodia elleryana F.Muell. is a synonym of: Melicope elleryana
- Euodia elleryana F.Muell. var. elleryana is a synonym of: Melicope elleryana
- Euodia erythrococca F.Muell. is a synonym of: Dinosperma erythrococcum
- Euodia fareana F.Muell. is a synonym of: Medicosma fareana
- Euodia haplophylla F.Muell. is a synonym of: Pitaviaster haplophyllus
- Euodia hylandii
- Euodia muelleri Engl. is a synonym of: Melicope elleryana
- Euodia neurococca F.Muell. is a synonym of: Bouchardatia neurococca
- Euodia pentacocca F.Muell. is a synonym of: Bosistoa pentacocca
- Euodia pubifolia
- Euodia rubra Lauterb. & K.Schum. is a synonym of: Melicope rubra
- Euodia sp. (Mountain Euodia BH 3921RFK) is a synonym of: Melicope jonesii
- Euodia sp. (Noah Creek BH 5987) is a synonym of: Euodia hylandii
- Euodia sp. (Oliver Creek LJW 10897) is a synonym of: Euodia pubifolia
- Euodia vitiflora F.Muell. is a synonym of: Melicope vitiflora
- Euodia xanthoxyloides F.Muell. is a synonym of: Melicope xanthoxyloides
- Euonymus australiana
- Euonymus globularis Ding Hou is a synonym of: Dinghoua globularis
- Eupatorium catarium Veldk. is a synonym of: Praxelis clematidea
- Eupatorium clematideum Griseb. is a synonym of: Praxelis clematidea
- Eupatorium odoratum L. is a synonym of: Chromolaena odorata
- Eupatorium riparium Regel is a synonym of: Ageratina riparia
- Euphorbia cyathophora
- Euphorbia eremophloia A.Cunn. is a synonym of: Euphorbia tannensis subsp. eremophila
- Euphorbia hirta
- Euphorbia hyssopifolia
- Euphorbia plumerioides
- Euphorbia tannensis subsp. eremophila
- Euphorbia tannensis var. eremophila (Cunn.) D.C.Hassall is a synonym of: Euphorbia tannensis subsp. eremophila
- Euplassa bleasdalei (F.Muell.) Diels is a synonym of: Bleasdalea bleasdalei
- Eupomatia barbata
- Eupomatia laurina
- Euroschinus falcatus Hook.f. is a synonym of: Euroschinus falcatus var. falcatus
- Euroschinus falcatus var. falcatus
- Euroschinus falcatus var. typica Domin is a synonym of: Euroschinus falcatus var. falcatus
- Euroschinus parvifolia S.Moore is a synonym of: Euroschinus falcatus var. falcatus
- Eurycles amboinensis (L.) Lindley is a synonym of: Proiphys amboinensis
- Eurycles australasicus (Ker Gawl.) G.Don is a synonym of: Proiphys amboinensis
- Eustrephus angustifolius R.Br. is a synonym of: Eustrephus latifolius
- Eustrephus brownii F.Muell. is a synonym of: Eustrephus latifolius
- Eustrephus latifolius Ker Gawl. subf. latifolius is a synonym of: Eustrephus latifolius
- Eustrephus latifolius Ker Gawl. subsp. latifolius is a synonym of: Eustrephus latifolius
- Eustrephus latifolius Ker Gawl. subvar. latifolius is a synonym of: Eustrephus latifolius
- Eustrephus latifolius Ker Gawl. var. latifolius is a synonym of: Eustrephus latifolius
- Eustrephus latifolius
- Eustrephus latifolius R.Br. is a synonym of: Eustrephus latifolius
- Eustrephus latifolius subsp. watsonianus (Miq.) Schlittler is a synonym of: Eustrephus latifolius
- Eustrephus latifolius var. angustifolius (R.Br.) Benth. is a synonym of: Eustrephus latifolius
- Eustrephus latifolius var. brownii Schlittler is a synonym of: Eustrephus latifolius
- Eustrephus latifolius var. intercedens Domin is a synonym of: Eustrephus latifolius
- Eustrephus latifolius var. typicus Domin is a synonym of: Eustrephus latifolius
- Eustrephus watsonianus Miq. is a synonym of: Eustrephus latifolius
- Eutassa cunninghamii (Mudie) Sweet is a synonym of: Araucaria cunninghamii var. cunninghamii
- Everistia vacciniifolia var. vacciniifolia
- Evodiella muelleri is a synonym of: Melicope rubra
- Evodiella muelleri (Engl.) B.L.Linden is a synonym of: Melicope elleryana
- Evolvulus hederaceus Burm. f. is a synonym of: Merremia hederacea
- Ewyckia cyanea Bl. is a synonym of: Pternandra coerulescens
- Excavatia minima Markgr. is a synonym of: Ochrosia minima
- Excoecaria agallocha
- Excoecaria dallachyana
- Exocarpos floribundus Domin is a synonym of: Exocarpos latifolius
- Exocarpos latifolius
- Exocarya scleroides
F
G
- Gahnia aspera
- Gahnia aspera (R.Br.) Spreng. f. aspera is a synonym of: Gahnia aspera
- Gahnia aspera (R.Br.) Spreng. var. aspera is a synonym of: Gahnia aspera
- Gahnia sieberiana
- Gahnia sieberiana Kunth var. sieberiana is a synonym of: Gahnia sieberiana
- Galactia sp. Laura (J.C.Tothill JT53A)
- Galactia tenuiflora
- Galbulimima baccata
- Galbulimima belgraveana (F.Muell.) Sprague is a synonym of: Galbulimima baccata
- Galega colutea Burm.f. is a synonym of: Indigofera colutea
- Galeola foliata (F.Muell.) F.Muell. is a synonym of: Pseudovanilla foliata
- Galera nutans Blume is a synonym of: Epipogium roseum
- Ganophyllum falcatum
- Garcinia brassii
- Garcinia cherryi F.M.Bailey is a synonym of: Ternstroemia cherryi
- Garcinia dulcis
- Garcinia gibbsiae
- Garcinia jensenii
- Garcinia kajewski C.T. White is a synonym of: Garcinia warrenii
- Garcinia leggeae
- Garcinia mestonii
- Garcinia russellii
- Garcinia sp. Claudie River (L.J.Brass 19658) is a synonym of: Garcinia jensenii
- Garcinia sp. Claudie River (L.J.Brass 19658) is a synonym of: Garcinia leggeae
- Garcinia sp. Davies Creek (J.G.Tracey 14745) is a synonym of: Garcinia zichii
- Garcinia warrenii
- Garcinia xanthochymus
- Garcinia zichii
- Gardenia actinocarpa
- Gardenia edulis F.Muell. is a synonym of: Gardenia vilhelmii
- Gardenia fitzalanii F.Muell. is a synonym of: Atractocarpus fitzalanii subsp. fitzalanii
- Gardenia hirta F.Muell. is a synonym of: Atractocarpus hirtus
- Gardenia jardinei F.Muell. ex Benth. is a synonym of: Larsenaikia jardinei
- Gardenia kershawii F.M.Bailey is a synonym of: Larsenaikia ochreata
- Gardenia macgillivraei Benth. is a synonym of: Larsenaikia ochreata
- Gardenia merikin F.M.Bailey is a synonym of: Atractocarpus merikin
- Gardenia ochreata F.Muell. is a synonym of: Larsenaikia ochreata
- Gardenia ochreata var. parviflora F.Muell. is a synonym of: Larsenaikia ochreata
- Gardenia ovularis
- Gardenia psidioides
- Gardenia scabrella
- Gardenia vilhelmii
- Gardneria fragraeacea F.Muell. is a synonym of: Fagraea fagraeacea
- Garnotia stricta var. longiseta
- Garuga floribunda Decne. is a synonym of: Garuga floribunda var. floribunda
- Garuga floribunda var. floribunda
- Garuga javanica Bl. is a synonym of: Jagera madida
- Gastonia spectabilis (Harms) Philipson is a synonym of: Polyscias spectabilis
- Gaurea alliacea Blume is a synonym of: Dysoxylum alliaceum
- Geijera latifolia Lindl. is a synonym of: Geijera salicifolia
- Geijera muelleri Benth. is a synonym of: Coatesia paniculata
- Geijera paniculata (F.Muell.) Druce is a synonym of: Coatesia paniculata
- Geijera parviflora
- Geijera salicifolia
- Geijera salicifolia Schott var. salicifolia is a synonym of: Geijera salicifolia
- Geijera salicifolia var. latifolia (Lindl.) Domin is a synonym of: Geijera salicifolia
- Geijera salicifolia var. typica Domin is a synonym of: Geijera salicifolia
- Geissois biagiana (F.Muell.) F.Muell. is a synonym of: Karrabina biagiana
- Geitonoplesium cymosum
- Geitonoplesium cymosum (R.Br.) R.Br. f. cymosum is a synonym of: Geitonoplesium cymosum
- Geitonoplesium cymosum (R.Br.) R.Br. subf. cymosum is a synonym of: Geitonoplesium cymosum
- Gelibia elegans (C.Moore & F.Muell.) Hutch. is a synonym of: Polyscias elegans
- Gen. (AQ20546) sp. (Mt Hemmant L.J. Webb+ 10908) Staff of the Queensland Herbarium, Queensland Plant Names & is a synonym of: Hemmantia webbii
- Gen. (AQ385424) sp. (McDowall Range J.G. Tracey 14552) is a synonym of: Wilkiea sp. McDowall Range (J.G.Tracey 14552)
- Gen. (AQ520454) sp. Shute Harbour (D.A.Halford Q811)
- Gen. (AQ63687) sp. (Davies Creek L.J. Webb+ 6430) is a synonym of: Steganthera cooperorum
- Geniostoma australianum F.Muell. is a synonym of: Geniostoma rupestre var. australianum
- Geniostoma rupestre var. australianum
- Gentiana diffusa Vahl is a synonym of: Canscora diffusa
- Geophila repens
- Geosiris australiensis
- Gevuina bleasdalei (F.Muell.) Sleumer is a synonym of: Bleasdalea bleasdalei
- Gigantochloa novoguineensis Rendle in Gibbs is a synonym of: Neololeba atra
- Gillbeea adenopetala
- Gillbeea whypallana
- Glenniea sp. (Claudie River BH 15243) is a synonym of: Lepisanthes senegalensis
- Glochidion apodogynum
- Glochidion barronense Airy Shaw is a synonym of: Glochidion harveyanum var. harveyanum
- Glochidion benthamianum
- Glochidion capitis-york Airy Shaw is a synonym of: Glochidion benthamianum
- Glochidion disparipes
- Glochidion ferdinandi
- Glochidion ferdinandi var. mollis (Benth.) F.M.Bailey is a synonym of: Glochidion philippicum
- Glochidion ferdinandi var. supra-axillaris (Benth.) F.M.Bailey is a synonym of: Glochidion sumatranum
- Glochidion harveyanum Domin is a synonym of: Glochidion harveyanum var. harveyanum
- Glochidion harveyanum var. harveyanum
- Glochidion harveyanum var. pubescens
- Glochidion hylandii
- Glochidion lobocarpum
- Glochidion mindorense subsp. harveyanum (Domin) Airy Shaw is a synonym of: Glochidion harveyanum var. harveyanum
- Glochidion perakense Hook.f. is a synonym of: Glochidion sumatranum
- Glochidion perakense var. supra-axillare (Benth.) Airy Shaw is a synonym of: Glochidion sumatranum
- Glochidion philippicum
- Glochidion pungens
- Glochidion sessiliflorum Airy Shaw is a synonym of: Glochidion sessiliflorum var. sessiliflorum
- Glochidion sessiliflorum var. sessiliflorum
- Glochidion sessiliflorum var. pedicellatum
- Glochidion sessiliflorum var. stylosum
- Glochidion sumatranum
- Glochidion supra-axillare (Benth.) Domin is a synonym of: Glochidion sumatranum
- Glochidion umbratile Maiden & Betche is a synonym of: Breynia macrantha
- Glochidion xerocarpum
- Glossocarya calcicola
- Glossocarya hemiderma
- Glycine cyrtoloba
- Glycine javanica L. is a synonym of: Neonotonia wightii
- Glycine lucida G.Forst. is a synonym of: Strongylodon lucidus
- Glycine rubicunda Curtis is a synonym of: Kennedia rubicunda
- Glycine tenuiflora Klein ex Willd. is a synonym of: Galactia tenuiflora
- Glycine violacea Schneev. is a synonym of: Hardenbergia violacea
- Glycine wightii (Wight & Arn.) Verdc. is a synonym of: Neonotonia wightii
- Glycosmis pentaphylla (Retz.) DC. is a synonym of: Glycosmis trifoliata
- Glycosmis trifoliata
- Gmelina australis
- Gmelina dalrympleana
- Gmelina fasciculiflora
- Gmelina leichhardtii
- Gmelina macrophylla (R.Br.) Benth. is a synonym of: Gmelina dalrympleana
- Gnaphalium diosmifolium Vent. is a synonym of: Ozothamnus diosmifolius
- Gomphandra australiana
- Gomphandra polymorpha Wight is a synonym of: Gomphandra australiana
- Gomphia australiana F.Muell. is a synonym of: Brackenridgea australiana
- Gomphocarpus physocarpus
- Gomphrena ficoidea L. is a synonym of: Alternanthera ficoidea
- Gongronema micradenia (Benth.) F.Muell. is a synonym of: Marsdenia micradenia
- Goniocheton arborescens Blume is a synonym of: Dysoxylum arborescens
- Goniothalamus australis
- Gonocarpus acanthocarpus
- Gonus amarissimus Lour. is a synonym of: Brucea javanica
- Gossampinus heptaphylla Bakh. is a synonym of: Adansonia gregorii
- Gossia bamagensis
- Gossia bidwillii
- Gossia dallachiana
- Gossia floribunda
- Gossia grayi
- Gossia hillii
- Gossia lewisensis
- Gossia lucida
- Gossia macilwraithensis
- Gossia myrsinocarpa
- Gossia pubiflora
- Gossia retusa
- Gossia sankowskyorum
- Gossia shepherdii
- Gossia sp. Green Bark (B.Hyland 25370RFK)
- Gossia sp. Leo Creek (B.Gray 5254) is a synonym of: Gossia grayi
- Gouania australiana
- Gouania exilis
- Gouania hillii F.Muell. is a synonym of: Gouania australiana
- Graptophyllum earlii F.Muell. is a synonym of: Graptophyllum excelsum
- Graptophyllum earlii F.Muell. var. earlii is a synonym of: Graptophyllum excelsum
- Graptophyllum earlii var. ilicifolium F.Muell. is a synonym of: Graptophyllum excelsum
- Graptophyllum earlii var. ilicifolium F.Muell. is a synonym of: Graptophyllum ilicifolium
- Graptophyllum excelsum
- Graptophyllum ilicifolium
- Graptophyllum spinigerum
- Graptophyllum thorogoodii C.T.White is a synonym of: Graptophyllum excelsum
- Grevillea agrifolia
- Grevillea agrifolia R.Br. var. agrifolia is a synonym of: Grevillea agrifolia
- Grevillea baileyana
- Grevillea bleasdalei F.Muell. is a synonym of: Bleasdalea bleasdalei
- Grevillea chrysodendrum R.Br. is a synonym of: Grevillea pteridifolia
- Grevillea heliosperma
- Grevillea helmsiae
- Grevillea hilliana
- Grevillea pinnatifida (F.M.Bailey) F.M.Bailey is a synonym of: Grevillea baileyana
- Grevillea pteridifolia
- Grevillea pteridifolia Knight var. pteridifolia is a synonym of: Grevillea pteridifolia
- Grevillea pteridifolia var. mitchellii (Hook.) Domin is a synonym of: Grevillea pteridifolia
- Grevillea pteridifolia var. typica Domin is a synonym of: Grevillea pteridifolia
- Grevillea robusta
- Grevillea robusta R.Br. var. robusta is a synonym of: Grevillea robusta
- Grevillea robusta var. compacta Anon. is a synonym of: Grevillea robusta
- Grevillea umbratica Meisn. is a synonym of: Grevillea robusta
- Grewia australis
- Grewia breviflora
- Grewia glabra
- Grewia mesomischa
- Grewia orientalis var. latifolia Benth. is a synonym of: Grewia oxyphylla
- Grewia oxyphylla
- Grewia papuana
- Grewia pleiostigma F.Muell. is a synonym of: Trichospermum pleiostigma
- Grewia retusifolia
- Grewia scabrella
- Guatteria micrantha A.DC. is a synonym of: Uvaria micrantha
- Guettarda myrtoides F.Muell. is a synonym of: Bobea myrtoides
- Guettarda polyphragmoides F. Muell. is a synonym of: Timonius timon var. timon
- Guettarda putaminosa (F.Muell.) F.Muell. is a synonym of: Antirhea putaminosa
- Guettarda speciosa
- Guettarda tenuiflora (F.Muell. ex Benth.) F.Muell. is a synonym of: Antirhea tenuiflora
- Guettardella ovatifolia M.E.Jansen is a synonym of: Antirhea ovatifolia
- Guettardella putaminosa (F.Muell.) Benth. is a synonym of: Antirhea putaminosa
- Guettardella sp. Lower Downey (B.Gray 5536) is a synonym of: Amaracarpus nematopodus
- Guettardella tenuiflora (F.Muell. ex Benth.) M.E.Jansen is a synonym of: Antirhea tenuiflora
- Guilandina bonduc
- Guilandina bonducella L. is a synonym of: Guilandina bonduc
- Guilandina nuga L. is a synonym of: Caesalpinia crista
- Guilandina paniculata Lam. is a synonym of: Caesalpinia crista
- Guilfoylia monostylis
- Guilfoylia pentastylis F.M.Bailey is a synonym of: Cadellia pentastylis
- Guioa acutifolia
- Guioa crenifoliola Merr. & L.M.Perry is a synonym of: Guioa sarcopterifructa
- Guioa dasyantha Radlk. is a synonym of: Cnesmocarpon dasyantha
- Guioa lasioneura
- Guioa montana
- Guioa pteropoda Radlk. is a synonym of: Guioa sarcopterifructa
- Guioa sarcopterifructa
- Guioa semiglauca
- Gulubia costata (Becc.) Becc. is a synonym of: Hydriastele costata
- Gulubia costata (Becc.) Becc. var. costata is a synonym of: Hydriastele costata
- Gulubia costata var. gracilior Burret is a synonym of: Hydriastele costata
- Gumira acuminata (R.Br.) Kuntze is a synonym of: Premna acuminata
- Gumira attenuata (R.Br.) Kuntze is a synonym of: Premna serratifolia
- Gumira dallachyana (Benth.) Kuntze is a synonym of: Premna dallachyana
- Gumira limbata (Benth.) Kuntze is a synonym of: Premna limbata
- Gunnessia pepo
- Gymnanthera nitida R.Br. is a synonym of: Gymnanthera oblonga
- Gymnanthera oblonga
- Gymnema dunnii (Maiden & Betche) P.I.Forst. is a synonym of: Marsdenia pleiadenia
- Gymnema geminatum R.Br. is a synonym of: Marsdenia geminata
- Gymnema micradenium Benth. is a synonym of: Marsdenia micradenia
- Gymnema pleiadenium F.Muell. is a synonym of: Marsdenia pleiadenia
- Gymnema sylvestre (Retz.) R.Br. ex Schult. is a synonym of: Marsdenia geminata
- Gymnema tricholepis Schltr. is a synonym of: Marsdenia tricholepis
- Gymnosporia cunninghamii (Hook.) Loes. is a synonym of: Denhamia cunninghamii
- Gymnosporia inermis
- Gymnosporia montana (Roth ex Roemer & Schultes) Benth. is a synonym of: Gymnosporia inermis
- Gymnostachys anceps
- Gymnostachys gigantea Domin is a synonym of: Gymnostachys anceps
- Gymnostoma australianum
- Gynochthodes ammitia
- Gynochthodes australiensis
- Gynochthodes canthoides
- Gynochthodes constipata
- Gynochthodes jasminoides
- Gynochthodes oresbia
- Gynochthodes podistra
- Gynochthodes retropila
- Gynochthodes sessilis
- Gynochthodes sp. Iron Range (B.Hyland 11587)
- Gynochthodes umbellata
- Gynochtodes sp. (Lamb Range) is a synonym of: Gynochthodes oresbia
- Gynopogon ilicifolius (F.Muell.) K.Schum. is a synonym of: Alyxia ilicifolia
- Gynopogon spicatum (R.Br.) Britten is a synonym of: Alyxia spicata
- Gynopogon stellatus J.R.Forst. & G.Forst. is a synonym of: Alyxia stellata
- Gynura crepidioides Benth. is a synonym of: Crassocephalum crepidioides
- Gynura drymophila var. drymophila
- Gynura drymophila var. glabrifolia
- Gyrocarpus acuminatus Meisn. is a synonym of: Gyrocarpus americanus
- Gyrocarpus americanus
- Gyrocarpus americanus Jacq. subsp. americanus is a synonym of: Gyrocarpus americanus
- Gyrocarpus americanus subsp. pachyphyllus Kubitzki is a synonym of: Gyrocarpus americanus
- Gyrocarpus americanus subsp. sphenopterus (R.Br.) Kubitzki is a synonym of: Gyrocarpus americanus
- Gyrocarpus asiaticus Willd. is a synonym of: Gyrocarpus americanus
- Gyrocarpus jacquinii Gaertn. is a synonym of: Gyrocarpus americanus
- Gyrocarpus rugosus R.Br. is a synonym of: Gyrocarpus americanus
- Gyrocarpus sphenopterus R.Br. is a synonym of: Gyrocarpus americanus
- Gyrostemon attenuatus Hook. is a synonym of: Codonocarpus attenuatus
H
- Halfordia drupifera F.Muell. is a synonym of: Halfordia kendack
- Halfordia kendack
- Halfordia leichhardtii (F.Muell.) Guillaumin is a synonym of: Halfordia kendack
- Halfordia scleroxyla F.Muell. is a synonym of: Halfordia kendack
- Haloragis acanthocarpa Brongn. is a synonym of: Gonocarpus acanthocarpus
- Haloragis yarrabensis Domin is a synonym of: Gonocarpus acanthocarpus
- Hanguana malayana
- Hanslia ormocarpoides
- Haplostichanthus fruticosus Jessup is a synonym of: Polyalthia fruticosa
- Haplostichanthus johnsonii F.Muell. is a synonym of: Polyalthia johnsonii
- Haplostichanthus ramiflorus Jessup is a synonym of: Polyalthia xanthocarpa
- Haplostichanthus rufescens Jessup is a synonym of: Polyalthia hispida
- Haplostichanthus sp. (Topaz LWJ 520) is a synonym of: Polyalthia submontana subsp. sessiliflora
- Haplostichanthus sp. Cooper Creek (BG 2433) is a synonym of: Polyalthia xanthocarpa
- Haplostichanthus sp. Johnstone River (LWJ 471) is a synonym of: Polyalthia hispida
- Haplostichanthus sp. Rocky River Scrub (P.I. Forster PIF10617) is a synonym of: Polyalthia fruticosa
- Haplostichanthus sp. Rocky River Scrub (P.I.Forster 10617) is a synonym of: Polyalthia fruticosa
- Haplostichanthus submontanus Jessup is a synonym of: Polyalthia submontana subsp. submontana
- Haplostichanthus submontanus Jessup subsp. submontanus is a synonym of: Polyalthia submontana subsp. submontana
- Haplostichanthus submontanus subsp. sessiliflorus Jessup is a synonym of: Polyalthia submontana subsp. sessiliflora
- Hardenbergia retusa Benth. is a synonym of: Vandasina retusa
- Hardenbergia violacea
- Harnieria hygrophiloides
- Harpullia angustialata C.T.White & W.D.Francis is a synonym of: Harpullia rhyticarpa
- Harpullia arborea
- Harpullia divaricata Radlk. is a synonym of: Harpullia arborea
- Harpullia frutescens
- Harpullia hillii
- Harpullia holoptera Radlk. is a synonym of: Harpullia frutescens
- Harpullia pendula
- Harpullia ramiflora
- Harpullia rhyticarpa
- Harpullia wadsworthii F.Muell. is a synonym of: Cupaniopsis wadsworthii
- Harrisonia brownii
- Hartighsea rufa A.Rich. is a synonym of: Dysoxylum rufum
- Hartighsea rufa A.Rich. is a synonym of: Dysoxylum parasiticum
- Harungana madagascariensis
- Haussmannia jucunda F.Muell. is a synonym of: Neosepicaea jucunda
- Haussmannianthes jucunda (F.Muell.) Steenis is a synonym of: Neosepicaea jucunda
- Hearnia sapindina F.Muell. is a synonym of: Aglaia sapindina
- Hedera australiana F.Muell. is a synonym of: Polyscias australiana
- Hedraianthera porphyropetala
- Hedraianthera sp. Mossman (V.K.Moriarty 2557) is a synonym of: Brassiantha hedraiantheroides
- Hedycarya loxocarya
- Hedycarya macrophylla A.Cunn. is a synonym of: Wilkiea macrophylla
- Hedychium coronarium
- Hedyotis auricularia var. melanesica
- Hedyotis galioides F.Muell. is a synonym of: Oldenlandia galioides
- Hedyotis novoguineensis
- Hedyotis polyclada F.Muell. is a synonym of: Oldenlandia polyclada
- Hedyotis radicans
- Hedysarum gangeticum L. is a synonym of: Desmodium gangeticum
- Hedysarum intortum Mill. is a synonym of: Desmodium intortum
- Hedysarum prostratum L. is a synonym of: Indigofera linnaei
- Hedysarum tortuosum Sw. is a synonym of: Desmodium tortuosum
- Hedysarum umbellatum L. is a synonym of: Dendrolobium umbellatum var. umbellatum
- Helichrysum cassinioides Benth. is a synonym of: Ozothamnus cassinioides
- Helichrysum cladochaetum F.Muell. is a synonym of: Phacellothrix cladochaeta
- Helichrysum diosmifolium (Vent.) Sweet is a synonym of: Ozothamnus diosmifolius
- Helichrysum rupicola DC. is a synonym of: Coronidium rupicola
- Helichrysum rupicola DC. var. rupicola is a synonym of: Coronidium rupicola
- Helicia australasica
- Helicia blakei
- Helicia cribbiana (F.M.Bailey) F.M.Bailey is a synonym of: Corynocarpus cribbianus
- Helicia darlingiana F.Muell. is a synonym of: Darlingia darlingiana
- Helicia dentellata Sleumer is a synonym of: Helicia australasica
- Helicia diversifolia C.T.White is a synonym of: Athertonia diversifolia
- Helicia ferruginea var. tropica F.M.Bailey is a synonym of: Helicia nortoniana
- Helicia glabrescens C.T.White is a synonym of: Helicia australasica
- Helicia grayi
- Helicia heyana F.M.Bailey is a synonym of: Catalepidia heyana
- Helicia lamingtoniana
- Helicia lewisensis
- Helicia nortoniana
- Helicia recurva
- Helicia sayeriana F.Muell. is a synonym of: Hollandaea sayeriana
- Helicia tropica (Bailey) Domin is a synonym of: Helicia nortoniana
- Helicia whelanii F.M.Bailey is a synonym of: Lasjia whelanii
- Helicia whelanii F.M.Bailey is a synonym of: Lasjia whelanii
- Helicia youngiana var. montana C.T.White is a synonym of: Triunia montana
- Helicteres hirsuta
- Helicteres isora
- Helicteres semiglabra
- Helicteres semiglabra F.M.Bailey var. semiglabra is a synonym of: Helicteres semiglabra
- Heliotropium foertherianum
- Heliotropium muelleri
- Heliotropium sarmentosum
- Heliotropium tenuifolium
- Hellenia arctiflora F.Muell. is a synonym of: Alpinia arctiflora
- Hellenia caerulea R.Br. is a synonym of: Alpinia caerulea
- Helmholtzia acorifolia
- Hemecyclia australasica Mull.Arg. is a synonym of: Drypetes deplanchei
- Hemecyclia lasiogyna F.Muell. is a synonym of: Drypetes deplanchei
- Hemecyclia sepiaria var. australasica Baill. is a synonym of: Drypetes deplanchei
- Hemecyclia sepiaria var. oblongifolia Benth. is a synonym of: Drypetes deplanchei
- Hemigraphis alternata
- Hemigraphis ciliata
- Hemigraphis royenii Bremek. is a synonym of: Hemigraphis ciliata
- Hemistemma banksii DC. is a synonym of: Hibbertia banksii
- Hemmantia webbii
- Henslowia queenslandiae L.S.Sm. is a synonym of: Dendrotrophe varians
- Henslowia varians Blume is a synonym of: Dendrotrophe varians
- Heptapleurum ellipticum Seem. is a synonym of: Schefflera elliptica
- Heptapleurum venulosum Seem. is a synonym of: Schefflera elliptica
- Herissantia crispa
- Heritiera littoralis
- Heritiera peralata (Bailey) Kosterm. is a synonym of: Argyrodendron peralatum
- Heritiera polyandra (L.S.Smith) Kosterm. is a synonym of: Argyrodendron polyandrum
- Heritiera trifoliolata (F.Muell.) Kosterm. is a synonym of: Argyrodendron trifoliolatum
- Hernandia albiflora
- Hernandia bivalvis
- Hernandia nymphaeifolia
- Hernandia peltata Meisn. is a synonym of: Hernandia nymphaeifolia
- Heterodendron tropicum S.T.Reynolds is a synonym of: Alectryon tropicus
- Heterodendrum diversifolium F.Muell. is a synonym of: Alectryon diversifolius
- Heteropogon contortus
- Heterostemma acuminatum
- Hexaspermum paniculatum Domin is a synonym of: Phyllanthus clamboides
- Hexaspora pubescens
- Hibbertia banksii (DC.) Benth. f. banksii is a synonym of: Hibbertia banksii
- Hibbertia banksii
- Hibbertia melhanioides
- Hibbertia melhanioides F.Muell. var. melhanioides is a synonym of: Hibbertia melhanioides
- Hibbertia scandens
- Hibbertia scandens (Willd.) Dryand. var. scandens is a synonym of: Hibbertia scandens
- Hibbertia scandens var. normalis Domin is a synonym of: Hibbertia scandens
- Hibbertia volubilis Andrews is a synonym of: Hibbertia scandens
- Hibbertia volubilis Andrews var. volubilis is a synonym of: Hibbertia scandens
- Hibiscus diversifolius subsp. rivularis
- Hibiscus fitzgeraldii F.Muell. is a synonym of: Hibiscus heterophyllus
- Hibiscus geranioides
- Hibiscus heterophyllus var. genuinus Hochr. is a synonym of: Hibiscus heterophyllus
- Hibiscus heterophyllus var. leefei Hochr. is a synonym of: Hibiscus heterophyllus
- Hibiscus heterophyllus
- Hibiscus heterophyllus Vent. subsp. heterophyllus is a synonym of: Hibiscus heterophyllus
- Hibiscus krichauffianus
- Hibiscus longifolius var. tuberosus Span. is a synonym of: Abelmoschus moschatus subsp. tuberosus
- Hibiscus macilwraithensis
- Hibiscus meraukensis
- Hibiscus normanii
- Hibiscus peralbus
- Hibiscus populneoides Roxb. is a synonym of: Thespesia populneoides
- Hibiscus populneus L. is a synonym of: Thespesia populnea
- Hibiscus propulsator
- Hibiscus rhodopetalus (F.Muell.) Benth. is a synonym of: Abelmoschus moschatus subsp. tuberosus
- Hibiscus rhodopetalus (F.Muell.) Benth. f. rhodopetalus is a synonym of: Abelmoschus moschatus subsp. tuberosus
- Hibiscus rhodopetalus (F.Muell.) Benth. var. rhodopetalus is a synonym of: Abelmoschus moschatus subsp. tuberosus
- Hibiscus rhodopetalus f. typica Domin is a synonym of: Abelmoschus moschatus subsp. tuberosus
- Hibiscus rhodopetalus var. chillagoensis Domin is a synonym of: Abelmoschus moschatus subsp. tuberosus
- Hibiscus rivularis Bremek. & Oberm. is a synonym of: Hibiscus diversifolius subsp. rivularis
- Hibiscus sankowskyorum
- Hibiscus tiliaceus
- Hibiscus tiliaceus L. subsp. tiliaceus is a synonym of: Hibiscus tiliaceus
- Hibiscus tozerensis
- Hibiscus vitifolius
- Hicksbeachia diversifolia (C.T.White) Sleumer is a synonym of: Athertonia diversifolia
- Hicksbeachia pilosa
- Himantandra baccata (Bailey) Diels is a synonym of: Galbulimima baccata
- Hippia integrifolia L. f. is a synonym of: Dichrocephala integrifolia
- Hippocratea barbata
- Hippocratea obtusifolia var. barbata (F.Muell.) Benth. is a synonym of: Hippocratea barbata
- Hiptage benghalensis
- Hiptage madablota Gaertn. is a synonym of: Hiptage benghalensis
- Hodgkinsonia frutescens C.T.White is a synonym of: Eumachia frutescens
- Hodgkinsonia ovatiflora
- Hollandaea diabolica
- Hollandaea lamingtoniana F.M.Bailey is a synonym of: Helicia lamingtoniana
- Hollandaea porphyrocarpa
- Hollandaea riparia
- Hollandaea sayeri F.Muell. is a synonym of: Hollandaea sayeriana
- Hollandaea sayeriana
- Hollandaea sp. Pinnacle Rock Track (P.I.Forster PIF10714) is a synonym of: Hollandaea porphyrocarpa
- Hollrungia aurantioides K.Schum. is a synonym of: Passiflora aurantioides
- Homalanthus novo-guineensis
- Homalanthus populifolius
- Homalium alnifolium
- Homalium brachybotrys
- Homalium circumpinnatum
- Homalium sp. South Molle Island (J.A.Gresty AQ208995)
- Hormogyne cotinifolia A.DC. is a synonym of: Planchonella cotinifolia var. cotinifolia
- Hornstedtia scottiana
- Horsfieldia australiana
- Hovea longipes
- Hovea nitida
- Hoya alata K.D.Hill is a synonym of: Hoya anulata
- Hoya anulata
- Hoya australis subsp. australis
- Hoya australis R.Br. ex Traill is a synonym of: Hoya australis subsp. australis
- Hoya australis subsp. sanae
- Hoya australis subsp. tenuipes
- Hoya dalrympleana F.Muell. is a synonym of: Hoya australis subsp. australis
- Hoya flexuosa (R.Br.) Spreng. is a synonym of: Tylophora flexuosa
- Hoya grandiflora (R.Br.) Spreng. is a synonym of: Tylophora grandiflora
- Hoya keysii F.M.Bailey is a synonym of: Hoya australis subsp. australis
- Hoya lauterbachii K.Schum. is a synonym of: Hoya sussuela
- Hoya macgillivrayi
- Hoya nicholsoniae F.Muell. is a synonym of: Hoya pottsii
- Hoya oligotricha K.D.Hill is a synonym of: Hoya australis subsp. australis
- Hoya oligotricha K.D.Hill subsp. oligotricha is a synonym of: Hoya australis subsp. australis
- Hoya oligotricha subsp. tenuipes K.D.Hill is a synonym of: Hoya australis subsp. tenuipes
- Hoya pottsii
- Hoya pseudolittoralis C.Norman is a synonym of: Hoya anulata
- Hoya sanae F.M.Bailey is a synonym of: Hoya australis subsp. sanae
- Hoya sussuela
- Huberantha nitidissima
- Hugonia jenkinsii
- Husemannia protensa F.Muell. is a synonym of: Carronia protensa
- Huttum calyptratum (Miers) Britten is a synonym of: Barringtonia calyptrata
- Hybanthus enneaspermus (L.) F.Muell. is a synonym of: Afrohybanthus enneaspermus
- Hybanthus enneaspermus var. stellarioides Domin is a synonym of: Afrohybanthus stellarioides
- Hybanthus stellarioides (Domin) P.I.Forst. is a synonym of: Afrohybanthus stellarioides
- Hydriastele costata
- Hydriastele douglasiana F.M.Bailey is a synonym of: Hydriastele wendlandiana
- Hydriastele wendlandiana
- Hydriastele wendlandiana (F.Muell.) H.Wendl. & Drude var. wendlandiana is a synonym of: Hydriastele wendlandiana
- Hydriastele wendlandiana var. microcarpa H.Wendl. & Drude is a synonym of: Hydriastele wendlandiana
- Hydrocotyle acutiloba
- Hydrocotyle asiatica L. is a synonym of: Centella asiatica
- Hydrocotyle digitata
- Hydrocotyle hirta var. acutiloba F.Muell. is a synonym of: Hydrocotyle acutiloba
- Hydrocotyle miranda
- Hydrocotyle pedicellosa
- Hydrocotyle peduncularis
- Hydrocotyle tripartita
- Hylandia dockrillii
- Hymenosporum flavum
- Hypericum gramineum
- Hypoestes floribunda
- Hypoestes floribunda R.Br. var. floribunda is a synonym of: Hypoestes floribunda
- Hypoestes floribunda subsp. densiflora Benth. is a synonym of: Hypoestes floribunda
- Hypoestes floribunda subsp. distans Benth. is a synonym of: Hypoestes floribunda
- Hypoestes floribunda subsp. paniculata Benth. is a synonym of: Hypoestes floribunda
- Hypoestes floribunda var. angustifolia Benth. is a synonym of: Hypoestes floribunda
- Hypoestes floribunda var. canescens Benth. is a synonym of: Hypoestes floribunda
- Hypoestes floribunda var. cinerea R.M.Barker is a synonym of: Hypoestes floribunda
- Hypoestes floribunda var. distans (Benth.) Ewart & O.B.Davies is a synonym of: Hypoestes floribunda
- Hypoestes floribunda var. paniculata (Benth.) Ewart & O.B.Davies is a synonym of: Hypoestes floribunda
- Hypoestes floribunda var. pubescens Benth. is a synonym of: Hypoestes floribunda
- Hypoestes floribunda var. suaveolens (C.A.Gardner) R.M.Barker is a synonym of: Hypoestes floribunda
- Hypoestes floribunda var. varia R.M.Barker is a synonym of: Hypoestes floribunda
- Hypoestes floribunda var. velutina R.M.Barker is a synonym of: Hypoestes floribunda
- Hypoestes floribunda var. yorkensis R.M.Barker is a synonym of: Hypoestes floribunda
- Hypoestes laxiflora Nees is a synonym of: Hypoestes floribunda
- Hypoestes moschata F.Muell. & Holtze is a synonym of: Hypoestes floribunda
- Hypoestes phyllostachya
- Hypoestes suaveolens C.A.Gardner is a synonym of: Hypoestes floribunda
- Hypolytrum compactum
- Hypolytrum nemorum
- Hypolytrum nemorum (Vahl) Spreng. var. nemorum is a synonym of: Hypolytrum nemorum
- Hypolytrum nemorum var. proliferum (Boeckeler) J. Kern is a synonym of: Hypolytrum proliferum
- Hypolytrum proliferum
- Hypserpa decumbens
- Hypserpa laurina
- Hypserpa polyandra
- Hypserpa reticulata Forman is a synonym of: Hypserpa smilacifolia
- Hypserpa selwynii F.Muell. is a synonym of: Hypserpa laurina
- Hypserpa smilacifolia
- Hypsophila dielsiana
- Hypsophila halleyana
- Hypsophila oppositifolia F.Muell. is a synonym of: Flindersia oppositifolia
- Hyptiandra bidwillii Hook.f. is a synonym of: Samadera bidwillii
- Hyptis capitata
- Hyptis pectinata (L.) Poit. is a synonym of: Mesosphaerum pectinatum
- Hyptis suaveolens (L.) Poit. is a synonym of: Mesosphaerum suaveolens
- Hysteria veratrifolia Reinw. is a synonym of: Corymborkis veratrifolia
I
- Ichnocarpus dasycalyx Miq. is a synonym of: Ichnocarpus frutescens
- Ichnocarpus frutescens
- Ichnocarpus frutescens f. pubescens Markgr. is a synonym of: Ichnocarpus frutescens
- Ichnocarpus frutescens var. leptodictyus (F.Muell.) Domin is a synonym of: Ichnocarpus frutescens
- Ichnocarpus leptodictyus F.Muell. is a synonym of: Ichnocarpus frutescens
- Ichnocarpus moluccanus Miq. is a synonym of: Ichnocarpus frutescens
- Ichnocarpus ovatifolius A.DC. is a synonym of: Ichnocarpus frutescens
- Ichnocarpus rhombifolius
- Ichnocarpus salomonensis C.T.White is a synonym of: Ichnocarpus rhombifolius
- Ichnocarpus serpyllifolius auct. non (Blume) P.I.Forst. is a synonym of: Ichnocarpus rhombifolius
- Ichnocarpus sogerensis Wernh. ex S.Moore is a synonym of: Ichnocarpus frutescens
- Icica timoriensis DC. is a synonym of: Pleiogynium timoriense
- Idiospermum australiense
- Ilex arnhemensis subsp. arnhemensis
- Ilex arnhemensis subsp. ferdinandi
- Ilex brassii Merr. & L.M.Perry is a synonym of: Ilex arnhemensis subsp. ferdinandi
- Ilex ferdinandi Harms is a synonym of: Ilex arnhemensis subsp. ferdinandi
- Ilex peduncularis F.Muell. is a synonym of: Ilex arnhemensis subsp. ferdinandi
- Ilex sp. Gadgarra (B.P.Hyland RFK 2011)
- Impatiens walleriana
- Indagator fordii
- Indigofera colutea
- Indigofera dominii H.Eichler is a synonym of: Indigofera linnaei
- Indigofera enneaphylla L. is a synonym of: Indigofera linnaei
- Indigofera linnaei
- Indigofera prostrata (L.) Domin is a synonym of: Indigofera linnaei
- Indigofera suffruticosa
- Indigofera suffruticosa Mill. subsp. suffruticosa is a synonym of: Indigofera suffruticosa
- Inga monilifera Decne. is a synonym of: Cathormion umbellatum subsp. moniliforme
- Inga moniliformis DC. is a synonym of: Cathormion umbellatum subsp. moniliforme
- Inga pterocarpa DC. is a synonym of: Peltophorum pterocarpum
- Inga saman (Jacq.) Willd. is a synonym of: Samanea saman
- Intsia bijuga
- Ipomoea abrupta
- Ipomoea aculeata
- Ipomoea aculeata var. mollissima (Zoll.) Hallier f. ex Ooststr. is a synonym of: Ipomoea aculeata
- Ipomoea cairica
- Ipomoea digitata L. is a synonym of: Ipomoea mauritiana
- Ipomoea digitata L. var. digitata is a synonym of: Ipomoea mauritiana
- Ipomoea eriocarpa
- Ipomoea gracilis
- Ipomoea gracilis R.Br. var. gracilis is a synonym of: Ipomoea gracilis
- Ipomoea gracilis var. sagittata F.Muell. is a synonym of: Ipomoea gracilis
- Ipomoea hederifolia
- Ipomoea indica
- Ipomoea littoralis
- Ipomoea macrantha Roem. & Schult. is a synonym of: Ipomoea violacea
- Ipomoea mauritiana
- Ipomoea menispermacea Domin is a synonym of: Decalobanthus peltatus
- Ipomoea muelleri
- Ipomoea nil
- Ipomoea obscura
- Ipomoea obscura (L.) Ker Gawl. var. obscura is a synonym of: Ipomoea obscura
- Ipomoea palmata Forssk. is a synonym of: Ipomoea cairica
- Ipomoea paniculata (L.) R.Br. is a synonym of: Ipomoea mauritiana
- Ipomoea peltata (L.) Choisy is a synonym of: Decalobanthus peltatus
- Ipomoea pendula R. Br. is a synonym of: Ipomoea cairica
- Ipomoea pes-caprae subsp. brasiliensis
- Ipomoea pilosa Houtt. is a synonym of: Camonea pilosa
- Ipomoea plebeia
- Ipomoea plebeia R.Br. subsp. plebeia is a synonym of: Ipomoea plebeia
- Ipomoea quamoclit
- Ipomoea quinquefolia L. is a synonym of: Distimake quinquefolius
- Ipomoea riedeliana Oliv. is a synonym of: Operculina riedeliana
- Ipomoea saintronanensis
- Ipomoea sp. Merluna (B.Hyland 21374V)
- Ipomoea trichosperma
- Ipomoea triloba
- Ipomoea tuberosa L. is a synonym of: Distimake tuberosus
- Ipomoea urceolata R.Br. is a synonym of: Lepistemon urceolatus
- Ipomoea velutina
- Ipomoea violacea
- Irvingbaileya australis
- Irvingia australiana (F.Muell.) F.Muell. is a synonym of: Polyscias australiana
- Isachne confusa
- Isachne sharpii
- Isachne sp. Cape Tribulation (R.L.Jago 4560) is a synonym of: Isachne sharpii
- Ischnostemma carnosum (R.Br.) Merr. & Rolfe is a synonym of: Cynanchum carnosum
- Isolepis humillima
- Ixiosporum spinescens F.Muell. is a synonym of: Pittosporum spinescens
- Ixora baileyana
- Ixora biflora
- Ixora biflora Fosberg var. biflora is a synonym of: Ixora biflora
- Ixora biflora var. fleckeri Fosberg is a synonym of: Ixora biflora
- Ixora biflora var. typica Fosberg is a synonym of: Ixora biflora
- Ixora dallachiana (F. Muell. ex Benth) F. Muell. is a synonym of: Tarenna dallachiana subsp. dallachiana
- Ixora expandens (F.Muell.) F.Muell. is a synonym of: Tarenna dallachiana subsp. expandens
- Ixora klanderiana F.Muell. is a synonym of: Ixora timorensis
- Ixora kochii Bremek. is a synonym of: Ixora timorensis
- Ixora oreogena
- Ixora orophila C.T.White is a synonym of: Psydrax montigena
- Ixora pavetta Benth. is a synonym of: Pavetta australiensis
- Ixora pentamera Benth. is a synonym of: Tarenna pentamera
- Ixora queenslandica
- Ixora sp. (North Mary LA B.P. Hyland 8618) is a synonym of: Ixora oreogena
- Ixora sp. (North Mary LA BH 8618) is a synonym of: Ixora oreogena
- Ixora thozetiana F.Muell. is a synonym of: Aidia racemosa
- Ixora timorensis
- Ixora triflora R.Br. ex Benth. is a synonym of: Triflorensia ixoroides
J
- Jacquemontia paniculata
- Jacquemontia paniculata Hallier f. var. paniculata is a synonym of: Jacquemontia paniculata
- Jagera dasyantha (Radlk.) S.T.Reynolds is a synonym of: Cnesmocarpon dasyantha
- Jagera discolor S.T.Reynolds is a synonym of: Cnesmocarpon dasyantha
- Jagera javanica subsp. australiana Leenh. is a synonym of: Jagera madida
- Jagera madida
- Jagera pseudorhus (A.Rich.) Radlk. is a synonym of: Jagera pseudorhus var. pseudorhus
- Jagera pseudorhus (A.Rich.) Radlk. f. pseudorhus is a synonym of: Jagera pseudorhus var. pseudorhus
- Jagera pseudorhus var. pseudorhus
- Jagera pseudorhus f. pilosiuscula Radlk. is a synonym of: Jagera pseudorhus var. pseudorhus
- Jagera pseudorhus var. integerrima
- Jagera serrata (Roxb.) Radlk. is a synonym of: Jagera madida
- Jambolifera acidula (F.Muell.) Kuntze is a synonym of: Acronychia acidula
- Jambolifera baueri (Schott) Kuntze is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Jambolifera imperforata (F.Muell.) Kuntze is a synonym of: Acronychia imperforata
- Jambolifera laevis Kuntze is a synonym of: Acronychia laevis
- Jambolifera melicopoides (F.Muell.) Kuntze is a synonym of: Acronychia acronychioides
- Jambolifera vestita (F.Muell.) Kuntze is a synonym of: Acronychia vestita
- Jambosa aquea (Burm. f.) DC. is a synonym of: Syzygium aqueum
- Jambosa australis (H.L.Wendl. ex Link) DC. is a synonym of: Syzygium australe
- Jambosa malaccensis (L.) DC. is a synonym of: Syzygium malaccense
- Jambosa papuanum (Lauterb.) Diels is a synonym of: Pilidiostigma papuanum
- Jambosa tierneyana (F.Muell.) Diels is a synonym of: Syzygium tierneyanum
- Jasminonerium ovatum (R.Br.) Kuntze is a synonym of: Carissa ovata
- Jasminum acuminatum R.Br. is a synonym of: Jasminum molle
- Jasminum aemulum f. interstans Domin is a synonym of: Jasminum elongatum
- Jasminum aemulum R.Br. is a synonym of: Jasminum elongatum
- Jasminum aemulum R.Br. f. aemulum is a synonym of: Jasminum elongatum
- Jasminum aemulum R.Br. var. aemulum is a synonym of: Jasminum elongatum
- Jasminum aemulum var. brassii P.S.Green is a synonym of: Jasminum elongatum
- Jasminum aemulum var. genuinum Domin is a synonym of: Jasminum elongatum
- Jasminum aemulum var. glaberrimum Domin is a synonym of: Jasminum elongatum
- Jasminum dallachii
- Jasminum didymum G.Forst. is a synonym of: Jasminum didymum subsp. didymum
- Jasminum didymum G.Forst. f. didymum is a synonym of: Jasminum didymum subsp. didymum
- Jasminum didymum subsp. didymum
- Jasminum didymum G.Forst. var. didymum is a synonym of: Jasminum didymum subsp. didymum
- Jasminum didymum subsp. racemosum
- Jasminum didymum var. dallachii (F.Muell.) Domin is a synonym of: Jasminum dallachii
- Jasminum didymum var. pubescens Benth. is a synonym of: Jasminum dallachii
- Jasminum didymum var. typicum Domin is a synonym of: Jasminum didymum subsp. didymum
- Jasminum divaricatum R.Br. is a synonym of: Jasminum didymum subsp. didymum
- Jasminum dolichopetalum Merr. & Rolfe is a synonym of: Jasminum longipetalum
- Jasminum domatiigerum Lingelsh. subsp. australis W.K.Harris & W.J.McDonald is a synonym of: Jasminum dallachii
- Jasminum elongatum
- Jasminum forstenii Blume is a synonym of: Jasminum elongatum
- Jasminum geniculatum Vent. is a synonym of: Jasminum simplicifolium subsp. australiense
- Jasminum gracile Andrews is a synonym of: Jasminum simplicifolium subsp. australiense
- Jasminum kajewskii
- Jasminum longipetalum
- Jasminum molle
- Jasminum oblongum Burm. f. is a synonym of: Gymnanthera oblonga
- Jasminum parviflorum Decne. is a synonym of: Jasminum didymum subsp. didymum
- Jasminum pseudoanastomasans Lingelsh. is a synonym of: Jasminum longipetalum
- Jasminum racemosum F.Muell. is a synonym of: Jasminum didymum subsp. racemosum
- Jasminum simplicifolium G.Forst. is a synonym of: Jasminum simplicifolium subsp. australiense
- Jasminum simplicifolium subsp. australiense
- Jasminum simplicifolium var. molle (R.Br.) Benth. is a synonym of: Jasminum molle
- Jasminum singuliflorum F.M.Bailey is a synonym of: Jasminum dallachii
- Jasminum sp. (Jardine River LJB 18869) is a synonym of: Jasminum longipetalum
- Jasminum turneri C.T. White is a synonym of: Jasminum longipetalum
- Jasminum volubile Jacq. is a synonym of: Jasminum simplicifolium subsp. australiense
- Jatropha moluccana L. is a synonym of: Aleurites moluccanus
- Josephinia eugeniae
- Josephinia grandiflora R.Br. is a synonym of: Josephinia imperatricis
- Josephinia imperatricis
- Jossinia reinwardtia (Bl.) Bl. is a synonym of: Eugenia reinwardtiana
- Juncus usitatus
- Jussiaea hyssopifolia G.Don is a synonym of: Ludwigia hyssopifolia
- Jussiaea suffruticosa L. is a synonym of: Ludwigia octovalvis
- Jussiaea suffruticosa var. angustifolia (Lam.) Kuntze is a synonym of: Ludwigia octovalvis
- Jussiaea suffruticosa var. octofila (DC.) H.Lev. is a synonym of: Ludwigia octovalvis
- Jussiaea suffruticosa var. villosa (Lam.) Kuntze is a synonym of: Ludwigia octovalvis
- Jussiaea suffruticosa var. villosa F.M.Bailey is a synonym of: Ludwigia octovalvis
- Jussiaea villosa Lam. is a synonym of: Ludwigia octovalvis
- Justicia adscendens R.Br. is a synonym of: Rostellularia adscendens
- Justicia cavernarum F.Muell. is a synonym of: Rhaphidospora cavernarum
- Justicia clementii Domin is a synonym of: Rostellularia adscendens
- Justicia glaucoviolacea Domin is a synonym of: Rostellularia adscendens
- Justicia hygrophiloides F.Muell. is a synonym of: Harnieria hygrophiloides
- Justicia juncea R.Br. is a synonym of: Rostellularia adscendens
- Justicia media R.Br. is a synonym of: Rostellularia adscendens
- Justicia nervosa Vahl is a synonym of: Eranthemum pulchellum
- Justicia notha C.B.Clarke is a synonym of: Rostellularia adscendens
- Justicia platyphylla S.Moore is a synonym of: Rhaphidospora platyphylla
- Justicia procumbens (L) Nees var. latifolia Domin is a synonym of: Rostellularia adscendens var. latifolia
- Justicia procumbens L. is a synonym of: Rostellularia adscendens
- Justicia procumbens L. var. procumbens is a synonym of: Rostellularia adscendens
- Justicia procumbens var. adscendens (R.Br.) Domin is a synonym of: Rostellularia adscendens
- Justicia procumbens var. bonneyana (F.Muell.) Domin is a synonym of: Rostellularia adscendens
- Justicia procumbens var. hispida Domin is a synonym of: Rostellularia adscendens
- Justicia procumbens var. juncea (R.Br.) Domin is a synonym of: Rostellularia adscendens
- Justicia procumbens var. latifolia Domin is a synonym of: Rostellularia adscendens
- Justicia procumbens var. peploides (Nees) F.M.Bailey is a synonym of: Rostellularia adscendens
- Justicia procumbens var. typica Domin is a synonym of: Rostellularia adscendens
- Justicia sp. Marr Creek (B.Hyland 16069)
- Justicia tubaeformis Bertol. is a synonym of: Odontonema tubaeforme
K
- Kailarsenia jardinei (F.Muell. ex Benth.) Puttock is a synonym of: Larsenaikia jardinei
- Kailarsenia ochreata (F.Muell.) Puttock is a synonym of: Larsenaikia ochreata
- Kaluhaburunghos apodus (Benth.) Kuntze is a synonym of: Cleistanthus apodus
- Kaluhaburunghos dallachyanus (Baill.) Kuntze is a synonym of: Cleistanthus dallachyanus
- Kaluhaburunghos semiopacus (Benth.) Kuntze is a synonym of: Cleistanthus semiopacus
- Karrabina biagiana
- Kayea larnachiana F.Muell. is a synonym of: Mesua larnachiana
- Kennedia retusa (Benth.) F.Muell. is a synonym of: Vandasina retusa
- Kennedia rubicunda
- Kennedia rubicunda (W.M.Curtis) Vent. var. rubicunda is a synonym of: Kennedia rubicunda
- Kentia acuminata H.Wendl. & Drude is a synonym of: Carpentaria acuminata
- Kentia costata Becc. is a synonym of: Hydriastele costata
- Kentia macarthurii H.Wend. ex H.J.Veitch is a synonym of: Ptychosperma macarthurii
- Kentia minor (W.Hill) F.Muell. is a synonym of: Linospadix minor
- Kentia wendlandiana F.Muell. is a synonym of: Hydriastele wendlandiana
- Kermadecia bleasdalei (F.Muell.) F.M.Bailey is a synonym of: Bleasdalea bleasdalei
- Kermadecia pinnatifida F.M.Bailey is a synonym of: Grevillea baileyana
- Kibara laxiflora Benth. is a synonym of: Steganthera laxiflora subsp. laxiflora
- Kibara longipes Benth. is a synonym of: Wilkiea longipes
- Kibara papuana auct. non A.C. Sm. is a synonym of: Steganthera cooperorum
- Kibara pubescens Benth. is a synonym of: Wilkiea pubescens
- Kibara rigidifolia A.C.Smith is a synonym of: Wilkiea rigidifolia
- Kissodendron australianum (F.Muell.) Seem. is a synonym of: Polyscias australiana
- Kissodendron australianum (F.Muell.) Seem. var. australianum is a synonym of: Polyscias australiana
- Kissodendron australianum var. furfuraceum C.T.White is a synonym of: Polyscias australiana
- Kissodendron bellendenkerense (Bailey) Domin is a synonym of: Polyscias bellendenkerensis
- Kleinhovia hospita
- Kopsia arborea
- Korthalsella articulata Blakely is a synonym of: Korthalsella rubra subsp. rubra
- Korthalsella brassiana Blakely in C.T. White is a synonym of: Korthalsella japonica subsp. brassiana
- Korthalsella grayi
- Korthalsella japonica subsp. brassiana
- Korthalsella papuana
- Korthalsella rubra subsp. rubra
- Kuhlia morindifolia Rein. ex Blume is a synonym of: Fagraea racemosa
- Kunstleria blackii (F.Muell.) Polhill is a synonym of: Austrosteenisia blackii
- Kunstleria stipularis (C.T.White) Polhill is a synonym of: Austrosteenisia stipularis
- Kuntheria pedunculata
- Kyllinga brevifolia Rottb. is a synonym of: Cyperus brevifolius
- Kyllinga panicea Rottb. is a synonym of: Cyperus paniceus
- Kyllinga triceps Rottb. is a synonym of: Cyperus triceps
L
- Labichea nitida
- Laboucheria chlorostachya F.Muell. is a synonym of: Erythrophleum chlorostachys
- Laccospadix australasicus
- Lactaria calocarpa (Hassk.) Hassk. is a synonym of: Ochrosia elliptica
- Lagerstroemia archeriana
- Lagerstroemia archeriana F.M.Bailey subsp. archeriana is a synonym of: Lagerstroemia archeriana
- Lagerstroemia archeriana F.M.Bailey var. archeriana is a synonym of: Lagerstroemia archeriana
- Lagerstroemia archeriana var. glabrescens F.M.Bailey is a synonym of: Lagerstroemia archeriana
- Lagrezia altissima Moq. is a synonym of: Deeringia arborescens
- Lagunaria patersonia subsp. bracteata (Benth.) P.S.Green is a synonym of: Lagunaria queenslandica
- Lagunaria patersonia var. bracteata Benth. is a synonym of: Lagunaria queenslandica
- Lagunaria queenslandica
- Lamechites schlechteri Markgraf is a synonym of: Ichnocarpus rhombifolius
- Lampocarya aspera R.Br. is a synonym of: Gahnia aspera
- Langsdorffia indica Arn. is a synonym of: Balanophora fungosa subsp. indica
- Lantana camara
- Laportea corallodesme Lauterb. in K.Schumann & C.A.G.Lauterbach is a synonym of: Dendrocnide corallodesme
- Laportea cordifolia L.S.Sm. is a synonym of: Dendrocnide cordifolia
- Laportea interrupta
- Laportea moroides Wedd. is a synonym of: Dendrocnide moroides
- Laportea photinophylla (Kunth) Wedd. is a synonym of: Dendrocnide photinophylla
- Larsenaikia jardinei
- Larsenaikia ochreata
- Lasianthus chlorocarpus
- Lasianthus cyanocarpus Jack is a synonym of: Lasianthus hirsutus
- Lasianthus graciliflorus F.M.Bailey is a synonym of: Ixora baileyana
- Lasianthus hirsutus
- Lasianthus strigosus Wight is a synonym of: Lasianthus chlorocarpus
- Lasjia claudiensis
- Lasjia grandis
- Lasjia whelanii
- Laurus australis Hook. is a synonym of: Cryptocarya laevigata
- Laurus bowiei Hook. is a synonym of: Cryptocarya laevigata
- Laurus camphora L. is a synonym of: Cinnamomum camphora
- Lavenia macrophylla Blume is a synonym of: Adenostemma macrophyllum
- Lebidiera cunninghamii Müll.Arg. is a synonym of: Cleistanthus cunninghamii
- Ledgeria foliata F.Muell. is a synonym of: Pseudovanilla foliata
- Leea brunoniana C.B.Clarke is a synonym of: Leea rubra
- Leea indica (Burm.f.) Merr. is a synonym of: Leea novoguineensis
- Leea novoguineensis
- Leea rubra
- Leea sambucina Willd. is a synonym of: Leea novoguineensis
- Legnephora moorei
- Legnephora moorei (F.Muell.) Miers var. moorei is a synonym of: Legnephora moorei
- Legnephora moorei var. subacuta Domin is a synonym of: Legnephora moorei
- Legnephora moorei var. typica Domin is a synonym of: Legnephora moorei
- Leichhardtia clamboides F.Muell. is a synonym of: Phyllanthus clamboides
- Leichhardtia leptophylla (Benth.) Bullock is a synonym of: Marsdenia viridiflora
- Leionema ellipticum
- Lenbrassia australiana (C.T.White) G.W.Gillett is a synonym of: Lenbrassia australiana var. australiana
- Lenbrassia australiana var. australiana
- Lenbrassia australiana var. glabrescens
- Lens phaseoloides L. in O.Stickman is a synonym of: Entada phaseoloides
- Lenwebbia lasioclada
- Leonotis nepetifolia
- Leontice leontopetaloides L. is a synonym of: Tacca leontopetaloides
- Lepidagathis royenii
- Lepiderema hirsuta
- Lepiderema ixiocarpa
- Lepiderema largiflorens
- Lepiderema punctulata
- Lepiderema sericolignis
- Lepiderema sp. (Cooper's Puzzle WWC 486) is a synonym of: Cupaniopsis cooperorum
- Lepiderema sp. Impulse Creek (A.B.Pollock 73)
- Lepidopetalum fructoglabrum
- Lepidopetalum subdichotomum Radlk. is a synonym of: Lepidopetalum fructoglabrum
- Lepidozamia hopei
- Lepironia sumatrana Miq. is a synonym of: Thoracostachyum sumatranum
- Lepisanthes rubiginosa
- Lepisanthes senegalensis
- Lepistemon fitzalanii F.Muell. is a synonym of: Lepistemon urceolatus
- Lepistemon lucae F.Muell. is a synonym of: Lepistemon urceolatus
- Lepistemon urceolatus
- Leptaspis banksii
- Leptaspis tararaensis Jansen is a synonym of: Scrotochloa tararaensis
- Leptonema melanthesoides F.Muell. is a synonym of: Flueggea virosa subsp. melanthesoides
- Leptospermum wooroonooran
- Lestibudesia arborescens R.Br. is a synonym of: Deeringia arborescens
- Lethedon setosa
- Leucaena glauca (Willd.) Benth. is a synonym of: Leucaena leucocephala
- Leucaena leucocephala
- Leucas decemdentata
- Leucocarpum obscurum A.Rich. is a synonym of: Denhamia obscura
- Leucocarpum oleaster (Lindl.) F.Muell. is a synonym of: Denhamia oleaster
- Leucocarpum pittosporoides (F.Muell.) F.Muell. is a synonym of: Denhamia pittosporoides subsp. pittosporoides
- Leucojum capitulatum Lour. is a synonym of: Molineria capitulata
- Leucopogon malayanus subsp. novoguineensis
- Leucopogon ruscifolius
- Leucopogon spathaceus Pedley is a synonym of: Acrothamnus spathaceus
- Leucopogon yorkensis
- Leucosmia chermsideana F.M.Bailey is a synonym of: Phaleria chermsideana
- Levieria acuminata
- Licuala ramsayi var. ramsayi
- Licuala ramsayi var. tuckeri
- Ligustrum australianum
- Ligustrum lucidum
- Ligustrum sinense
- Limacia esiangkara F.M.Bailey is a synonym of: Tinospora esiangkara
- Limacia selwynii (F.Muell.) F.M.Bailey is a synonym of: Hypserpa laurina
- Limodorum roseum D. Don is a synonym of: Epipogium roseum
- Limonia minuta G.Forst. is a synonym of: Micromelum minutum
- Lindera queenslandica
- Lindernia crustacea
- Lindsayomyrtus brachyandrus (C.T.White) B.Hyland & Steenis is a synonym of: Lindsayomyrtus racemoides
- Lindsayomyrtus racemoides
- Linociera axillaris (R.Br.) Knobl. is a synonym of: Chionanthus axillaris
- Linociera coriacea C.T.White is a synonym of: Chionanthus sleumeri
- Linociera ramiflora (Roxb.) DC. is a synonym of: Chionanthus ramiflorus
- Linociera sleumeri C.T.White is a synonym of: Chionanthus sleumeri
- Linociera sp. Little Pine LA (BH 2520RFK) is a synonym of: Chionanthus sp. Little Pine L.A. (B.Hyland 2520RFK)
- Linospadix aequisegmentosa (Domin) Burret is a synonym of: Linospadix palmerianus
- Linospadix apetiolatus
- Linospadix microcarya var. multisecta (Becc.) Burret is a synonym of: Linospadix microcaryus
- Linospadix microcaryus
- Linospadix minor
- Linospadix palmerianus
- Lithomyrtus obtusa
- Lithoxylon grandifolium Müll.Arg. is a synonym of: Actephila lindleyi
- Lithoxylon lindleyi Steud. is a synonym of: Actephila lindleyi
- Lithoxylon nitidum Baill. is a synonym of: Actephila lindleyi
- Lithoxylon nitidum Müll.Arg. is a synonym of: Actephila lindleyi
- Litsea baueri Endl. is a synonym of: Neolitsea dealbata
- Litsea bennettii
- Litsea bindoniana
- Litsea brassii O.Schmidt is a synonym of: Litsea glutinosa
- Litsea breviumbellata
- Litsea calophyllantha K.Schum. in K.Schum. & Lauterb. is a synonym of: Litsea macrophylla
- Litsea chinensis Lam. is a synonym of: Litsea glutinosa
- Litsea connorsii
- Litsea dealbata (R.Br.) Steud. is a synonym of: Neolitsea dealbata
- Litsea dealbata (R.Br.) Steud. var. dealbata is a synonym of: Neolitsea dealbata
- Litsea dealbata var. glabrata Meisn. is a synonym of: Neolitsea dealbata
- Litsea dealbata var. incisa Meisn. is a synonym of: Neolitsea dealbata
- Litsea dealbata var. rufa Benth. is a synonym of: Neolitsea dealbata
- Litsea dealbata var. typica Domin is a synonym of: Neolitsea dealbata
- Litsea fawcettiana
- Litsea glutinosa
- Litsea granitica
- Litsea leefeana
- Litsea macrophylla
- Litsea rufa Nees is a synonym of: Neolitsea dealbata
- Litsea zeylanica Nees & T.Nees is a synonym of: Neolitsea brassii
- Livistona australis
- Livistona benthamii
- Livistona concinna
- Livistona decipiens Becc. is a synonym of: Livistona decora
- Livistona decipiens var. polyantha Becc. is a synonym of: Livistona decora
- Livistona decora
- Livistona drudei
- Livistona holtzei Becc. is a synonym of: Livistona benthamii
- Livistona mariae subsp. rigida (Becc.) Rodd is a synonym of: Livistona rigida
- Livistona muelleri
- Livistona rigida
- Livistona sp. B is a synonym of: Livistona victoriae
- Livistona sp. Cooktown is a synonym of: Livistona concinna
- Livistona sp. Cooktown (A.K.Irvine 2178) is a synonym of: Livistona concinna
- Livistona victoriae
- Lobelia enantophylla (F.Muell.) Kuntze is a synonym of: Scaevola enantophylla
- Lobelia sericea var. koenigii (M.Vahl) Kuntze is a synonym of: Scaevola taccada
- Lobelia taccada Gaertn. is a synonym of: Scaevola taccada
- Lobelia trigonocaulis
- Lochnera rosea (L.) K.Schum. is a synonym of: Catharanthus roseus
- Loeseneriella barbata (F.Muell.) C.T.White is a synonym of: Hippocratea barbata
- Lomandra banksii
- Lomandra hystrix
- Lomandra longifolia
- Lomandra longifolia subsp. hystrix (R.BR.) A.Lee is a synonym of: Lomandra hystrix
- Lomandra longifolia var. hystrix (R.BR.) Domin is a synonym of: Lomandra hystrix
- Lomandra tropica
- Lomandra tropica subsp. arnhemica A.T.Lee is a synonym of: Lomandra tropica
- Lomastelma smithii (Poir.) J.H.Willis is a synonym of: Syzygium smithii
- Lomatia fraxinifolia is a synonym of: Lomatia milnerae
- Lomatia milnerae
- Lonchocarpus blackii (F.Muell.) Benth. is a synonym of: Austrosteenisia blackii
- Lonchocarpus nesiotes F.M.Bailey is a synonym of: Austrosteenisia blackii
- Lonchocarpus stipularis C.T.White is a synonym of: Austrosteenisia stipularis
- Lophatherum gracile
- Lophopetalum arnhemicum
- Lophospermum erubescens
- Lophostemon confertus
- Lophostemon grandiflorus subsp. riparius
- Lophostemon lactifluus
- Lophostemon suaveolens
- Loranthus acacioides Cunn. ex Benth. is a synonym of: Dendrophthoe acacioides subsp. acacioides
- Loranthus beauverdiana F.M. Bailey is a synonym of: Amylotheca dictyophleba
- Loranthus betchei var. tomentillus Blakely is a synonym of: Amyema villiflora subsp. tomentilla
- Loranthus bifurcatus Benth. is a synonym of: Amyema bifurcata
- Loranthus brittenii Blakely is a synonym of: Decaisnina brittenii subsp. brittenii
- Loranthus congener Sieber ex Schultes & J.H. Schultes is a synonym of: Amyema congener subsp. congener
- Loranthus conspicuus F.M. Bailey is a synonym of: Amyema conspicua subsp. conspicua
- Loranthus curvatus Blume is a synonym of: Dendrophthoe curvata
- Loranthus dictyophlebus F. Muell. is a synonym of: Amylotheca dictyophleba
- Loranthus exocarpi f. breviflorus Domin is a synonym of: Lysiana subfalcata
- Loranthus exocarpi var. spathulata Blakely is a synonym of: Lysiana spathulata
- Loranthus exocarpi var. venulosa Blakely is a synonym of: Lysiana subfalcata
- Loranthus exocarpivar. subfalcatus (Hook.) Domin is a synonym of: Lysiana subfalcata
- Loranthus falcatus L. f. is a synonym of: Dendrophthoe curvata
- Loranthus friesianus K. Schum. is a synonym of: Amyema friesiana
- Loranthus glaber Domin is a synonym of: Amyema glabra
- Loranthus hollrungii Schumann in Schumann & Hollrung is a synonym of: Decaisnina hollrungii
- Loranthus kimberleyensis C. A. Gardner is a synonym of: Dendrophthoe acacioides subsp. acacioides
- Loranthus longiflorus Benth. is a synonym of: Dendrophthoe vitellina
- Loranthus longiflorus var. savannorum Domin is a synonym of: Dendrophthoe glabrescens
- Loranthus longiflorusBenth is a synonym of: Dendrophthoe glabrescens
- Loranthus novaeguineae F.M. Bailey is a synonym of: Dactyliophora novae-guineae
- Loranthus obliquus Blakely is a synonym of: Amyema glabra
- Loranthus odontocalyx var. proprius Blakely is a synonym of: Dendrophthoe curvata
- Loranthus pendulus var. congener (Sieber ex Schultes & J.H. Schultes) Domin is a synonym of: Amyema congener subsp. congener
- Loranthus plicatulus K.Krause is a synonym of: Amyema plicatula
- Loranthus quandang var. villiflorus Domin is a synonym of: Amyema villiflora subsp. villiflora
- Loranthus queenslandica Blakely is a synonym of: Amyema queenslandica
- Loranthus seemenianum Schumann in Schumann & Hollrung is a synonym of: Amyema seemeniana
- Loranthus signatus F. Muell. ex Benth. is a synonym of: Decaisnina signata
- Loranthus signatus var. angustatus Domin is a synonym of: Decaisnina brittenii subsp. brittenii
- Loranthus signatus var. petiolaris Blakely ex C.T. White is a synonym of: Decaisnina congesta
- Loranthus signatus var. typicus Domin is a synonym of: Decaisnina signata
- Loranthus subfalcatus Hook. in Mitchell is a synonym of: Lysiana subfalcata
- Loranthus tenuifolius F.M. Bailey is a synonym of: Amylotheca dictyophleba
- Loranthus vitellinus F. Muell. is a synonym of: Dendrophthoe vitellina
- Loranthus vitellinus var. glabrescens Blakely is a synonym of: Dendrophthoe glabrescens
- Loranthus whitei Blakely is a synonym of: Amyema whitei
- Loroma cunninghamiana (H.Wendl.) O.F.Cook is a synonym of: Archontophoenix cunninghamiana
- Lucuma amorphosperma F.M.Bailey is a synonym of: Amorphospermum antilogum
- Lucuma antiloga (F.Muell.) F.M.Bailey is a synonym of: Amorphospermum antilogum
- Lucuma castanospermum (C.T.White) C.T.White & W.D.Francis is a synonym of: Vanroyena castanosperma
- Lucuma galactoxylon (F.Muell.) F.Muell. is a synonym of: Palaquium galactoxylon
- Lucuma obpyriformis F.M.Bailey is a synonym of: Sersalisia obpyriformis
- Lucuma prunifera F.Muell. is a synonym of: Niemeyera prunifera
- Lucuma sericea (Aiton) Benth. & Hook.f. is a synonym of: Sersalisia sericea
- Lucuma sessiliflora C.T.White is a synonym of: Sersalisia sessiliflora
- Lucuma unmackiana F.M.Bailey is a synonym of: Sersalisia unmackiana
- Ludwigia hyssopifolia
- Ludwigia octovalvis
- Ludwigia octovalvis (Jacq.) P.H.Raven subsp. octovalvis is a synonym of: Ludwigia octovalvis
- Ludwigia octovalvis subsp. sessiliflora (Micheli) P.H.Raven is a synonym of: Ludwigia octovalvis
- Luffa aegyptiaca
- Luffa aegyptiaca var. peramara F.M.Bailey is a synonym of: Luffa aegyptiaca
- Luffa cylindrica (L.) M.Roem. is a synonym of: Luffa aegyptiaca
- Luffa cylindrica var. insularum (A.Gray) Cogn. is a synonym of: Luffa aegyptiaca
- Luffa cylindrica var. leiocarpa Naudin is a synonym of: Luffa aegyptiaca
- Luffa cylindrica var. multiflora (Spreng.) Domin is a synonym of: Luffa aegyptiaca
- Luffa insularum A.Gray is a synonym of: Luffa aegyptiaca
- Luffa leiocarpa (Naudin) F.Muell. is a synonym of: Luffa aegyptiaca
- Lumnitzera montana F.Muell. is a synonym of: Macropteranthes montana
- Lunasia amara
- Lunasia amara Blanco var. amara is a synonym of: Lunasia amara
- Lunasia quercifolia (Warb.) Lauterb. & K.Schum. is a synonym of: Lunasia amara
- Luvunga monophylla
- Luzuriaga cymosa R.Br. is a synonym of: Geitonoplesium cymosum
- Lycianthes shanesii
- Lyonsia langiana (F.Muell.) Benth. is a synonym of: Parsonsia langiana
- Lyonsia latifolia Benth. is a synonym of: Parsonsia latifolia
- Lyonsia oblongifolia Benth. is a synonym of: Parsonsia plaesiophylla
- Lyonsia reticulata F.Muell. is a synonym of: Parsonsia straminea
- Lyonsia straminea R.Br. is a synonym of: Parsonsia straminea
- Lyonsia viridiflora F.M.Bailey is a synonym of: Parsonsia alboflavescens
- Lysiana exocarpi var. spathulata (Blakely) Chippendale is a synonym of: Lysiana spathulata
- Lysiana maritima
- Lysiana spathulata
- Lysiana subfalcata
- Lysiana subfalcata subsp. maritima Barlow is a synonym of: Lysiana maritima
- Lysiphyllum binatum (Blanco) de Wit is a synonym of: Bauhinia binata
- Lysiphyllum cunninghamii (Benth.) de Wit is a synonym of: Bauhinia cunninghamii
- Lysiphyllum hookeri (F.Muell.) Pedley is a synonym of: Bauhinia hookeri
M
- Maba compacta R.Br. is a synonym of: Diospyros compacta
- Maba cupulosa F.Muell. is a synonym of: Diospyros laurina
- Maba fasciculosa F.Muell. is a synonym of: Diospyros fasciculosa
- Maba geminata R.Br. is a synonym of: Diospyros geminata
- Maba hemicycloides F.Muell. ex Benth. is a synonym of: Diospyros hemicycloides
- Maba humilis R.Br. is a synonym of: Diospyros humilis
- Maba laurina R.Br. is a synonym of: Diospyros laurina
- Maba laxiflora Benth. is a synonym of: Diospyros fasciculosa
- Maba littorea R.Br. is a synonym of: Diospyros littorea
- Maba obovata R.Br. is a synonym of: Diospyros humilis
- Maba ovata F.Muell. is a synonym of: Diospyros humilis
- Maba rufa Labill. is a synonym of: Diospyros laurina
- Maba sericocarpa F.Muell. is a synonym of: Diospyros laurina
- Macadamia claudiensis C.L.Gross & B.Hyland is a synonym of: Lasjia claudiensis
- Macadamia grandis C.L.Gross & B.Hyland is a synonym of: Lasjia grandis
- Macadamia heyana (Bailey) Sleumer is a synonym of: Catalepidia heyana
- Macadamia whelanii (F.M.Bailey) F.M.Bailey is a synonym of: Lasjia whelanii
- Macaranga asterolasia F.Muell. is a synonym of: Macaranga involucrata var. mallotoides
- Macaranga fimbriata S.Moore is a synonym of: Macaranga polyadenia
- Macaranga dallachyana
- Macaranga inamoena
- Macaranga inermis Pax & K.Hoffm. is a synonym of: Macaranga polyadenia
- Macaranga involucrata Mull.Arg. is a synonym of: Macaranga involucrata var. mallotoides
- Macaranga involucrata var. mallotoides
- Macaranga mallotoides F.Muell. is a synonym of: Macaranga involucrata var. mallotoides
- Macaranga multiflora C.T.White is a synonym of: Macaranga polyadenia
- Macaranga polyadenia
- Macaranga subdentata
- Macaranga tanarius
- Macaranga tanarius var. genuina Mull.Arg. is a synonym of: Macaranga tanarius
- Macaranga tanarius var. glabra F.Muell. is a synonym of: Macaranga tanarius
- Macfadyena unguis-cati
- Macintyria octandra F.Muell. is a synonym of: Xanthophyllum octandrum
- Mackinlaya confusa
- Mackinlaya macrosciadea
- Maclura cochinchinensis
- Maclura cochinchinensis var. bancroftii (Bailey) Corner is a synonym of: Maclura cochinchinensis
- Macrolobium bijugum Colebr. is a synonym of: Intsia bijuga
- Macropteranthes fitzalanii
- Macropteranthes leiocaulis
- Macropteranthes montana
- Macroptilium atropurpureum
- Macrostelia grandifolia Fryxell is a synonym of: Hibiscus tozerensis
- Macrostelia grandifolia Fryxell subsp. grandifolia is a synonym of: Hibiscus tozerensis
- Macrostelia grandifolia subsp. macilwraithensis Fryxell is a synonym of: Hibiscus macilwraithensis
- Macrostelia sp. Bolt Head (BG 6853) is a synonym of: Hibiscus propulsator
- Macrotyloma axillare
- Macrotyloma uniflorum
- Macrozamia denisonii var. hopei (Regel) Schust. is a synonym of: Lepidozamia hopei
- Macrozamia hopei C.Moore is a synonym of: Lepidozamia hopei
- Maesa dependens
- Maesa dependens F.Muell. var. dependens is a synonym of: Maesa dependens
- Maesa dependens var. pubescens F.Muell. is a synonym of: Maesa dependens
- Maesa haplobotrys
- Maesa muelleri Mez is a synonym of: Maesa dependens
- Malaisia acuminata Planch. is a synonym of: Trophis scandens subsp. scandens
- Malaisia cunninghamii Planch. is a synonym of: Trophis scandens subsp. scandens
- Malaisia scandens (Lour.) Planch. is a synonym of: Trophis scandens subsp. scandens
- Malaisia scandens (Lour.) Planch. subsp. megacarpa P.S.Green is a synonym of: Trophis scandens subsp. scandens
- Malaisia tortuosa Blanco is a synonym of: Trophis scandens subsp. scandens
- Malaisia tortuosa var. acuminata (Planch.) Bureau is a synonym of: Trophis scandens subsp. scandens
- Malaisia tortuosa var. viridescens (Planch.) Bureau is a synonym of: Trophis scandens subsp. scandens
- Malaisia viridescens Planch. is a synonym of: Trophis scandens subsp. scandens
- Malapoenna bindoniana (F.Muell.) Kuntze is a synonym of: Litsea bindoniana
- Malapoenna dealbata (R.Br.) Kuntze is a synonym of: Neolitsea dealbata
- Mallotus angustifolius Benth. is a synonym of: Rockinghamia angustifolia
- Mallotus chlaoxyloides F.Muell. is a synonym of: Mallotus claoxyloides
- Mallotus claoxyloides
- Mallotus claoxyloides (F.Muell.) Mull.Arg. f. claoxyloides is a synonym of: Mallotus claoxyloides
- Mallotus claoxyloides (F.Muell.) Mull.Arg. var. claoxyloides is a synonym of: Mallotus claoxyloides
- Mallotus claoxyloides f. grossedentata Domin is a synonym of: Mallotus ficifolius
- Mallotus claoxyloides var. cordatus Airy Shaw is a synonym of: Mallotus claoxyloides
- Mallotus claoxyloides var. ficifolius Benth. is a synonym of: Mallotus ficifolius
- Mallotus claoxyloides var. glabratus Domin is a synonym of: Mallotus claoxyloides
- Mallotus claoxyloides var. macrophyllus Benth. is a synonym of: Mallotus ficifolius
- Mallotus conchinchinense Lour. is a synonym of: Mallotus paniculatus
- Mallotus derbyensis W.Fitzg. is a synonym of: Grewia breviflora
- Mallotus didymochryseus Airy Shaw is a synonym of: Mallotus dispersus
- Mallotus discolor
- Mallotus dispersus
- Mallotus ficifolius
- Mallotus mollissimus
- Mallotus muricatus (Wight) Mull.Arg. is a synonym of: Mallotus resinosus
- Mallotus muricatus var. walkerae (Hook.f.) Pax & K.Hoffm. is a synonym of: Mallotus resinosus
- Mallotus nesophilus
- Mallotus oblongifolius (Miq.) Mull.Arg. is a synonym of: Macaranga inamoena
- Mallotus oblongifolius (Miq.) Mull.Arg. var. oblongifolius is a synonym of: Macaranga inamoena
- Mallotus paniculatus
- Mallotus philippensis
- Mallotus polyadenos
- Mallotus pycnostachys F.Muell. is a synonym of: Mallotus mollissimus
- Mallotus repandus
- Mallotus resinosus
- Mallotus ricinoides (Pers.) Mull.Arg. is a synonym of: Mallotus mollissimus
- Mallotus surculosus
- Mallotus tiliifolius (Blume) Mull.Arg. is a synonym of: Mallotus nesophilus
- Mallotus walkerae Hook. f. is a synonym of: Mallotus resinosus
- Malva americana L. is a synonym of: Malvastrum americanum
- Malva spinosa (L.) E.H.L.Krause in Sturm is a synonym of: Sida spinosa
- Malvastrum americanum
- Malvastrum americanum (L.) Torr. var. americanum is a synonym of: Malvastrum americanum
- Malvastrum americanum var. stellatum S.R.Hill is a synonym of: Malvastrum americanum
- Malvastrum chillagoense
- Malvinda spinosa (L.) Medik. is a synonym of: Sida spinosa
- Mammea asiatica L. is a synonym of: Barringtonia asiatica
- Mammea touriga
- Mangifera indica
- Manihot glaziovii
- Manilkara kauki
- Maniltoa lenticellata
- Mapania sumatrana (Miq.) Benth. is a synonym of: Thoracostachyum sumatranum
- Maranthes corymbosa
- Margaritaria dubium-traceyi
- Margaritaria indica
- Marignia acutifolia DC. is a synonym of: Canarium acutifolium
- Mariscus decompositus R.Br. is a synonym of: Cyperus decompositus
- Mariscus gunnii var. novae-hollandiae (Boeck.) Domin is a synonym of: Cyperus gunnii subsp. novae-hollandiae
- Mariscus javanicus (Houtt.) Merr. & F.P.Metcalf is a synonym of: Cyperus javanicus
- Marsdenia cinerascens R.Br. is a synonym of: Tylophora cinerascens
- Marsdenia connivens
- Marsdenia cymulosa
- Marsdenia fragrans Domin is a synonym of: Marsdenia cymulosa
- Marsdenia geminata
- Marsdenia glandulifera
- Marsdenia hemiptera
- Marsdenia hullsii Benth. is a synonym of: Sarcolobus hullsii
- Marsdenia jensenii
- Marsdenia leptophylla Benth. is a synonym of: Marsdenia viridiflora
- Marsdenia longipedicellata
- Marsdenia micradenia
- Marsdenia microlepis
- Marsdenia paludicola
- Marsdenia pleiadenia
- Marsdenia rhyncholepis F.Muell. is a synonym of: Marsdenia cymulosa
- Marsdenia rostrata
- Marsdenia rostrata R.Br. var. rostrata is a synonym of: Marsdenia rostrata
- Marsdenia rostrata var. dunnii Maiden & Betche is a synonym of: Marsdenia pleiadenia
- Marsdenia straminea
- Marsdenia tricholepis
- Marsdenia velutina
- Marsdenia viridiflora
- Marsdenia viridiflora R.Br. is a synonym of: Marsdenia viridiflora
- Martynia annua
- Martynia driandra Gloxin is a synonym of: Martynia annua
- Martynia fragrans Lindl. is a synonym of: Martynia annua
- Martynia louisiana Mill. is a synonym of: Martynia annua
- Martynia lutea Lindl. is a synonym of: Martynia annua
- Martynia proboscidea Gloxin is a synonym of: Martynia annua
- Mastosuke rubiginosa (Desf. ex Vent.) Raf. is a synonym of: Ficus rubiginosa f. rubiginosa
- Matthiola myrtoides (F.Muell.) Kuntze is a synonym of: Bobea myrtoides
- Matthiola putaminosa (F.Muell.) Kuntze is a synonym of: Antirhea putaminosa
- Matthiola tenuiflora (F.Muell. ex Benth.) Kuntze is a synonym of: Antirhea tenuiflora
- Maximilianea gillivraei (Benth.) Kuntze is a synonym of: Cochlospermum gillivraei
- Mayepea axillaris (R.Br.) F.Muell. is a synonym of: Chionanthus axillaris
- Mayepea ramiflora (Roxb.) F.Muell. is a synonym of: Chionanthus ramiflorus
- Maytenus bilocularis (F.Muell.) Loes. is a synonym of: Denhamia bilocularis
- Maytenus cunninghamii (Hook.) Loes. is a synonym of: Denhamia cunninghamii
- Maytenus disperma (F.Muell.) Loes. is a synonym of: Denhamia disperma
- Maytenus emarginata (Willd.) Ding Hou is a synonym of: Gymnosporia inermis
- Maytenus fasciculiflora Jessup is a synonym of: Denhamia fasciculiflora
- Maytenus sp. Windsor Tableland (B.Hyland 3416RFK) is a synonym of: Denhamia bilocularis
- Mecardonia procumbens
- Medicosma fareana
- Medicosma glandulosa
- Medicosma heterophylla
- Medicosma mulgraveana
- Medicosma obovata
- Medicosma riparia
- Medicosma sessiliflora
- Medicosma sp. Karnak (P.I.Forster PIF15541) Qld Herbarium is a synonym of: Medicosma heterophylla
- Medicosma sp. Pieter Botte (B.Hyland 3503RFK) is a synonym of: Medicosma heterophylla
- Medinilla balls-headleyi
- Medusanthera australis (C.T.White) R.A.Howard is a synonym of: Irvingbaileya australis
- Megahertzia amplexicaulis
- Meibomia trichostachya (Benth.) Kuntze is a synonym of: Desmodium trichostachyum
- Meiogyne bidwillii
- Meiogyne cylindrocarpa
- Meiogyne cylindrocarpa (Burck) Heusden subsp. cylindrocarpa is a synonym of: Meiogyne cylindrocarpa
- Meiogyne cylindrocarpa subsp. trichocarpa Jessup is a synonym of: Meiogyne trichocarpa
- Meiogyne heteropetala
- Meiogyne hirsuta
- Meiogyne sp. (Henrietta Creek LWJ 512) is a synonym of: Meiogyne hirsuta
- Meiogyne sp. Mt Lewis (L.W. Jessup 554) is a synonym of: Meiogyne verrucosa
- Meiogyne sp. Tingle Scrub ( D.G. Fell + DGF 2676) is a synonym of: Meiogyne trichocarpa
- Meiogyne trichocarpa
- Meiogyne verrucosa
- Meistera dallachyi
- Melaleuca angustifolia Gaertn. is a synonym of: Asteromyrtus angustifolia
- Melaleuca argentea
- Melaleuca bracteata
- Melaleuca brassii Byrnes is a synonym of: Asteromyrtus brassii
- Melaleuca dealbata
- Melaleuca leucadendra
- Melaleuca recurva
- Melaleuca suaveolens Soland. ex Gaertn. is a synonym of: Lophostemon suaveolens
- Melaleuca viminalis
- Melaleuca viridiflora Gaertn. var. viridiflora is a synonym of: Melaleuca viridiflora
- Melaleuca viridiflora
- Melampodium ruderale Sw. is a synonym of: Eleutheranthera ruderalis
- Melanthera biflora (L.) Wild is a synonym of: Wollastonia biflora var. biflora
- Melanthesa cernua Decne. is a synonym of: Breynia cernua
- Melanthesa rhamnoides var. oblongifolia Mull.Arg. is a synonym of: Breynia oblongifolia
- Melastoma affine D.Don is a synonym of: Melastoma malabathricum subsp. malabathricum
- Melastoma cyanoides
- Melastoma malabathricum L. is a synonym of: Melastoma malabathricum subsp. malabathricum
- Melastoma malabathricum subsp. malabathricum
- Melastoma malabathricum var. nanum F.M.Bailey is a synonym of: Melastoma malabathricum subsp. malabathricum
- Melastoma malabathricum var. polyanthum (Blume) Benth. is a synonym of: Melastoma malabathricum subsp. malabathricum
- Melastoma novae-hollandiae Naudin is a synonym of: Melastoma malabathricum subsp. malabathricum
- Melastoma polyanthum Blume is a synonym of: Melastoma malabathricum subsp. malabathricum
- Melhania brachycarpa
- Melhania oblongifolia
- Melhania oblongifolia F.Muell. f. oblongifolia is a synonym of: Melhania oblongifolia
- Melia australasica A.Juss. is a synonym of: Melia azedarach
- Melia australis Sweet is a synonym of: Melia azedarach
- Melia azedarach
- Melia azedarach var. australasica DC. is a synonym of: Melia azedarach
- Melia composita Willd. is a synonym of: Melia azedarach
- Melia dubia Cav. is a synonym of: Melia azedarach
- Melia parasitica Osbeck is a synonym of: Dysoxylum parasiticum
- Melicope affinis
- Melicope bonwickii
- Melicope broadbentiana
- Melicope chooreechillum F.M.Bailey is a synonym of: Acronychia chooreechillum
- Melicope dielsii Lauterb. is a synonym of: Melicope broadbentiana
- Melicope elleryana
- Melicope erythrococca (F.Muell.) Benth. is a synonym of: Dinosperma erythrococcum
- Melicope fareana (F.Muell.) Engl. is a synonym of: Medicosma fareana
- Melicope fellii
- Melicope glabrifolia C.T.White & W.D.Francis is a synonym of: Melicope broadbentiana
- Melicope jonesii
- Melicope melanophloia C.T.White is a synonym of: Dinosperma melanophloium
- Melicope peninsularis
- Melicope platynema (F.Muell.) Engl. is a synonym of: Brombya platynema
- Melicope rubra
- Melicope sessiliflora C.T.White is a synonym of: Medicosma sessiliflora
- Melicope simplicifolia Domin is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Melicope simplicifolia Domin is a synonym of: Melicope broadbentiana
- Melicope sp. (Lockerbie GS 1319) is a synonym of: Melicope peninsularis
- Melicope sp. (Shiptons Flat LSS 14360) is a synonym of: Melicope rubra
- Melicope stipitata C.T.White & W.D.Francis is a synonym of: Dinosperma stipitatum
- Melicope vitiflora
- Melicope xanthoxyloides
- Melicytus oleaster Lindl. is a synonym of: Denhamia oleaster
- Melochia umbellata
- Melodinus acutiflorus
- Melodinus australis
- Melodinus australis Maiden & Betche is a synonym of: Melodinus acutiflorus
- Melodinus baccellianus
- Melodinus bacellianus (F.Muell.) S.T.Blake is a synonym of: Melodinus baccellianus
- Melodinus chilocarpoides F.Muell. is a synonym of: Melodinus australis
- Melodinus forbesii
- Melodinus gratus S.Moore is a synonym of: Melodinus acutiflorus
- Melodinus guilfoylei F.Muell. is a synonym of: Melodinus acutiflorus
- Melodinus murpe F.M.Bailey is a synonym of: Melodinus baccellianus
- Melodorum crassipetalum Jessup is a synonym of: Uvaria sankowskyi
- Melodorum leichhardtii (F.Muell.) Benth. is a synonym of: Uvaria leichhardtii
- Melodorum maccreai F.Muell. is a synonym of: Xylopia maccreae
- Melodorum rupestre Jessup is a synonym of: Uvaria rupestre
- Melodorum scabridulum Jessup is a synonym of: Uvaria scabridula
- Melodorum sp. (Claudie River BH 21171V) is a synonym of: Uvaria scabridula
- Melodorum sp. (Font Hills GS 380) is a synonym of: Uvaria sankowskyi
- Melodorum sp. (Stone Crossing LWJ 814) is a synonym of: Uvaria unguiculata
- Melodorum sp. (Topaz GS 244) is a synonym of: Uvaria topazensis
- Melodorum topazensis Jessup is a synonym of: Uvaria topazensis
- Melodorum uhrii F.Muell. is a synonym of: Uvaria uhrii
- Melodorum unguiculatum Jessup is a synonym of: Uvaria unguiculata
- Melothria althaeoides (Ser.) Nakai is a synonym of: Cucumis althaeoides
- Melothria cunninghamii (F.Muell.) Benth. is a synonym of: Zehneria cunninghamii
- Melothria cunninghamii (F.Muell.) Benth. var. cunninghamii is a synonym of: Zehneria cunninghamii
- Melothria cunninghamii var. major Domin is a synonym of: Zehneria cunninghamii
- Melothria ejecta (Bailey) Cogn. is a synonym of: Muellerargia timorensis
- Melothria subpellucida Cogn. is a synonym of: Muellerargia timorensis
- Melothria trifoliolata F.Muell. is a synonym of: Neoalsomitra clavigera
- Memecylon hylandii
- Memecylon pauciflorum
- Memecylon pauciflorum Blume var. pauciflorum is a synonym of: Memecylon pauciflorum
- Menispermum japonicum Thunb. is a synonym of: Stephania japonica var. japonica
- Mercurialis angustifolia (Mull.Arg.) Baill. is a synonym of: Claoxylon angustifolium
- Mercurialis tenerifolia Baill. is a synonym of: Claoxylon tenerifolium subsp. tenerifolium
- Merremia dissecta (Jacq.) Hallier f. is a synonym of: Distimake dissectus
- Merremia gemella
- Merremia gemella Hallier f. var. gemella is a synonym of: Merremia gemella
- Merremia hederacea
- Merremia peltata (L.) Merr. is a synonym of: Decalobanthus peltatus
- Merremia quinquefolia (L.) Hallier f. is a synonym of: Distimake quinquefolius
- Merremia tuberosa (L.) Rendle is a synonym of: Distimake tuberosus
- Merremia umbellata (L.) Hallier f. var. orientalis Hallier f. is a synonym of: Camonea pilosa
- Merremia umbellata subsp. orientalis (Hallier f.) Ooststr. is a synonym of: Camonea pilosa
- Mesosphaerum pectinatum
- Mesosphaerum suaveolens
- Mesua larnachiana
- Mesua sp. Boonjee (A.K.Irvine 1218)
- Metabolos radicans Bartl. ex DC. is a synonym of: Hedyotis radicans
- Meteorus coccineus Lour. is a synonym of: Barringtonia acutangula subsp. acutangula
- Methorium semiglabrum F.Muell. is a synonym of: Helicteres semiglabra
- Metrosideros chrysantha F.Muell. is a synonym of: Xanthostemon chrysanthus
- Metrosideros eucalyptoides (F.Muell.) F.Muell. is a synonym of: Xanthostemon eucalyptoides
- Metrosideros glomulifera Sm. is a synonym of: Syncarpia glomulifera subsp. glomulifera
- Metrosideros pachysperma (Bailey) F.Muell. is a synonym of: Ristantia pachysperma
- Metrosideros paradoxus (F.Muell.) F.Muell. is a synonym of: Xanthostemon paradoxus
- Metrosideros queenslandica L.S.Smith is a synonym of: Thaleropia queenslandica
- Metrosideros tetrapetala F.Muell. is a synonym of: Xanthostemon umbrosus
- Metrosideros verticillata C.T.White & W.D.Francis is a synonym of: Xanthostemon verticillatus
- Metrosideros viminalis Sol. ex Gaertner is a synonym of: Melaleuca viminalis
- Mezoneuron erythrocarpum
- Mezoneuron hymenocarpum
- Mezoneuron nitens
- Mezoneuron robustum C.T.White is a synonym of: Caesalpinia robusta
- Mezoneuron scortechinii
- Mezoneuron traceyi R.P.Clark is a synonym of: Mezoneuron scortechinii
- Michelia calyptrata (Miers) Kuntze is a synonym of: Barringtonia calyptrata
- Miconia calvescens
- Miconia nervosa
- Micrechites rhombifolia Markgr. is a synonym of: Ichnocarpus rhombifolius
- Micrechites rhombifolia var. lanceolata Markgraf is a synonym of: Ichnocarpus rhombifolius
- Microcitrus garrawayae (Bailey) Swingle is a synonym of: Citrus garrawayi
- Microcitrus inodora (Bailey) Swingle is a synonym of: Citrus inodora
- Microcitrus maideniana (Domin) Swingle is a synonym of: Citrus inodora
- Micromelum glabrescens Benth. is a synonym of: Micromelum minutum
- Micromelum minutum
- Micromelum pubescens var. glabrescens (Benth.) Oliv. is a synonym of: Micromelum minutum
- Microsemma setosa C.T.White is a synonym of: Lethedon setosa
- Microstachys chamaelea
- Microstachys chamaelea (L.) Hook.f. is a synonym of: Microstachys chamaelea
- Mikania micrantha
- Milium compressum Sw. is a synonym of: Axonopus compressus
- Miliusa bidwillii (Benth.) R.E.Fr. is a synonym of: Meiogyne bidwillii
- Miliusa brahei
- Miliusa D30127 Melville Island is a synonym of: Xylopia monosperma
- Miliusa horsfieldii
- Miliusa traceyi
- Millettia australis (Endl.) Benth. is a synonym of: Austrocallerya australis
- Millettia blackii F.Muell. is a synonym of: Austrosteenisia blackii
- Millettia maideniana F.M.Bailey is a synonym of: Austrocallerya australis
- Millettia pilipes F.M.Bailey is a synonym of: Austrocallerya pilipes
- Millettia pinnata (L.) Panigrahi is a synonym of: Pongamia pinnata var. pinnata
- Millettia sp. Boonjee LA (BH 7675) is a synonym of: Ibatiria furfuracea
- Millettia sp. McIlwraith (B.Hyland 3295RFK) is a synonym of: Pongamia pinnata var. minor
- Mimosa lebbeck L. is a synonym of: Albizia lebbeck
- Mimosa leucocephala Lam. is a synonym of: Leucaena leucocephala
- Mimosa melanoxylon (R.Br.) Poir. is a synonym of: Acacia melanoxylon
- Mimosa procera Roxb. is a synonym of: Albizia procera
- Mimosa pudica
- Mimosa saman Jacq. is a synonym of: Samanea saman
- Mimosa ulicifolia Salisb. is a synonym of: Acacia ulicifolia
- Mimusops browniana (A.DC.) Benth. is a synonym of: Manilkara kauki
- Mimusops elengi
- Mimusops kauki L. is a synonym of: Manilkara kauki
- Mimusops kauki var. browniana A.DC. is a synonym of: Manilkara kauki
- Mirabilis jalapa
- Mirasolia diversifolia Hemsl. is a synonym of: Tithonia diversifolia
- Mischarytera lautereriana
- Mischarytera macrobotrys
- Mischarytera megaphylla
- Mischocarpus anodontus
- Mischocarpus exangulatus
- Mischocarpus grandissimus
- Mischocarpus lachnocarpus
- Mischocarpus macrobotrys Merr. & L.M.Perry is a synonym of: Mischarytera macrobotrys
- Mischocarpus macrocarpus
- Mischocarpus montanus
- Mischocarpus pyriformis (F.Muell.) Radlk. is a synonym of: Mischocarpus pyriformis subsp. pyriformis
- Mischocarpus pyriformis subsp. pyriformis
- Mischocarpus pyriformis subsp. retusus (Radlk.) R.W.Ham is a synonym of: Mischocarpus montanus
- Mischocarpus retusus Radlk. is a synonym of: Mischocarpus montanus
- Mischocarpus stipitatus
- Mischocarpus sundaicus Blume is a synonym of: Mischocarpus stipitatus
- Mitracarpus hirtus
- Mitrantia bilocularis
- Mitrasacme diffusa Benth. is a synonym of: Mitrasacme paludosa
- Mitrasacme oasena
- Mitrasacme paludosa f. diffusa (Benth.) Domin is a synonym of: Mitrasacme paludosa
- Mitrasacme paludosa f. pilosula (F.Muell.) Domin is a synonym of: Mitrasacme paludosa
- Mitrasacme paludosa f. typica Domin is a synonym of: Mitrasacme paludosa
- Mitrasacme paludosa
- Mitrasacme paludosa R.Br. f. paludosa is a synonym of: Mitrasacme paludosa
- Mitrasacme pilosula F.Muell. is a synonym of: Mitrasacme paludosa
- Mitrasacme polymorpha
- Mitrasacme pygmaea
- Mitrella tiwiensis
- Mitrephora cylindrocarpa Burck is a synonym of: Meiogyne cylindrocarpa
- Mitrephora diversifolia
- Mitrephora froggattii F.Muell. is a synonym of: Pseuduvaria froggattii
- Mitrephora froggattii F.Muell. is a synonym of: Pseuduvaria mulgraveana var. glabrescens
- Mitrephora zippeliana Miq. is a synonym of: Mitrephora diversifolia
- Modecca australis DC. is a synonym of: Adenia heterophylla subsp. australis
- Modecca heterophylla Blume is a synonym of: Adenia heterophylla subsp. heterophylla
- Modecca populifolia Blume is a synonym of: Adenia heterophylla subsp. australis
- Molineria capitulata
- Molineria plicata Colla is a synonym of: Molineria capitulata
- Mollinedia acuminata F.Muell. is a synonym of: Levieria acuminata
- Mollinedia angustifolia F.M.Bailey is a synonym of: Wilkiea angustifolia
- Mollinedia laxiflora (Benth.) F.Muell. is a synonym of: Steganthera laxiflora subsp. laxiflora
- Mollinedia longipes (Benth.) F.Muell. is a synonym of: Wilkiea longipes
- Mollinedia loxocarya Benth. is a synonym of: Hedycarya loxocarya
- Mollinedia macooraia F.M.Bailey is a synonym of: Steganthera macooraia
- Mollinedia pubescens (Benth.) F. Muell. is a synonym of: Wilkiea pubescens
- Mollinedia subternata F.M.Bailey is a synonym of: Steganthera laxiflora subsp. laxiflora
- Mollinedia wardellii F.Muell. is a synonym of: Pendressia wardellii
- Momordica charantia
- Momordica cochinchinensis
- Momordica cylindrica L. is a synonym of: Luffa aegyptiaca
- Monimiaceae Gen. Nov. sp. (Davies Creek LJW 6430) is a synonym of: Steganthera cooperorum
- Monimiaceae Gen. Nov. sp. (McDowall Range JGT 14552) is a synonym of: Wilkiea sp. McDowall Range (J.G.Tracey 14552)
- Monimiaceae sp. (McIlwraith Range BH 10894) is a synonym of: Wilkiea hylandii
- Monococcus echinophorus
- Monoon australe
- Monoon michaelii
- Monoon patinatum
- Monostichanthus johnsonii F.Muell. is a synonym of: Polyalthia johnsonii
- Monotoca baileyana Domin is a synonym of: Acrotriche baileyana
- Monstera pinnata (L.) Schott is a synonym of: Epipremnum pinnatum
- Montanoa hibiscifolia
- Morinda ammitia Halford & A.J.Ford is a synonym of: Gynochthodes ammitia
- Morinda bracteata f. celebica Miq. is a synonym of: Morinda bracteata var. celebica
- Morinda bracteata var. celebica
- Morinda citrifolia
- Morinda citrifolia var. bracteata F.M.Bailey is a synonym of: Morinda bracteata var. celebica
- Morinda citrifolia var. typica Domin is a synonym of: Morinda citrifolia
- Morinda constipata Halford & A.J.Ford is a synonym of: Gynochthodes constipata
- Morinda hypotephra F.Muell. is a synonym of: Palmeria hypotephra
- Morinda jasminoides A.Cunn. is a synonym of: Gynochthodes jasminoides
- Morinda podistra Halford & A.J.Ford is a synonym of: Gynochthodes podistra
- Morinda reticulata Benth. is a synonym of: Coelospermum decipiens
- Morinda retropila Halford & A.J.Ford is a synonym of: Gynochthodes retropila
- Morinda salomoniensis Engl. is a synonym of: Coelospermum paniculatum var. paniculatum
- Morinda sp. (Black Leaves BG 1677) is a synonym of: Gynochthodes oresbia
- Morinda sp. (Mt Finnigan L.J.Webb 12114) is a synonym of: Gynochthodes oresbia
- Morinda sp. Bellenden Ker (W.Cooper 1526) is a synonym of: Gynochthodes constipata
- Morinda sp. Iron Range (B.Hyland 11587) is a synonym of: Gynochthodes sp. Iron Range (B.Hyland 11587)
- Morinda sp. Little Mossman (B.Gray 20141V) is a synonym of: Coelospermum dasylobum
- Morinda umbellata L. is a synonym of: Gynochthodes umbellata
- Moringa oleifera
- Moringa pterygosperma Gaertn. is a synonym of: Moringa oleifera
- Morus brunoniana Endl. is a synonym of: Streblus brunonianus
- Moschosma polystachyum (L.) Benth. is a synonym of: Basilicum polystachyon
- Motherwellia haplosciadea
- Mucuna diabolica subsp. kenneallyi
- Mucuna gigantea subsp. gigantea
- Mucuna gigantea (Willd.) DC. is a synonym of: Mucuna gigantea subsp. gigantea
- Mucuna hexandra Ralph is a synonym of: Dioclea hexandra
- Muehlenbeckia zippelii
- Muellerargia timorensis
- Muellerina obtusifolia (Merr.) Barlow is a synonym of: Cecarria obtusifolia
- Mukia althaeoides (Ser.) M.Roem. is a synonym of: Cucumis althaeoides
- Mullerochloa moreheadiana
- Muntingia bartramia L. is a synonym of: Commersonia bartramia
- Muricia cochinchinensis Lour. is a synonym of: Momordica cochinchinensis
- Murraya exotica L. is a synonym of: Murraya paniculata
- Murraya exotica var. ovatifoliolata Engl. is a synonym of: Murraya paniculata
- Murraya ovatifoliolata (Engl.) Domin is a synonym of: Murraya paniculata
- Murraya paniculata
- Murucuia herbertiana (Ker Gawl.) Sweet is a synonym of: Passiflora herbertiana
- Musa acuminata subsp. banksii N.W.Simmonds is a synonym of: Musa banksii
- Musa banksii
- Musa banksii F.Muell. var. banksii is a synonym of: Musa banksii
- Musa banksii var. muelleriana Domin is a synonym of: Musa banksii
- Musa hillii F.Muell. is a synonym of: Musa jackeyi
- Musa jackeyi
- Musgravea heterophylla
- Musgravea stenostachya
- Myoporum acuminatum var. angustifolium Benth. is a synonym of: Myoporum montanum
- Myoporum cunninghamii Benth. is a synonym of: Myoporum montanum
- Myoporum montanum
- Myristica cimicifera R.Br. is a synonym of: Myristica insipida
- Myristica cimicifera R.Br. var. cimicifera is a synonym of: Myristica insipida
- Myristica cimicifera R.Br. var. cimicifera is a synonym of: Myristica insipida
- Myristica cimicifera Sol. ex R.Br. is a synonym of: Myristica insipida
- Myristica cimicifera var. acutifolia Warb. is a synonym of: Myristica insipida
- Myristica cimicifera var. insipida (R.Br.) Warb. is a synonym of: Myristica insipida
- Myristica cimicifera var. typica Warb. is a synonym of: Myristica insipida
- Myristica cimicifera var. typica Warb. is a synonym of: Myristica insipida
- Myristica globosa subsp. muelleri
- Myristica insipida
- Myristica lancifolia subsp. australiana
- Myristica muelleri Warb. is a synonym of: Myristica globosa subsp. muelleri
- Myrobalanus erythrocarpa (F.Muell.) Kuntze is a synonym of: Terminalia erythrocarpa
- Myrobalanus muelleri (Benth.) Kuntze is a synonym of: Terminalia muelleri
- Myrobalanus petiolaris (Benth.) Kuntze is a synonym of: Terminalia petiolaris
- Myrobalanus platyphylla (F.Muell.) Kuntze is a synonym of: Terminalia platyphylla
- Myrobalanus sericocarpa (F.Muell.) Kuntze is a synonym of: Terminalia microcarpa
- Myrobalanus volucris (R.Br. ex Benth.) Kuntze is a synonym of: Terminalia volucris
- Myrsine achradifolia
- Myrsine benthamiana
- Myrsine campanulata F. Muell. is a synonym of: Myrsine variabilis
- Myrsine ireneae subsp. ireneae
- Myrsine kimberleyensis
- Myrsine maculata
- Myrsine oreophila
- Myrsine porosa
- Myrsine rubiginosa
- Myrsine crassifolia
- Myrsine serpenticola
- Myrsine smithii
- Myrsine subsessilis F.Muell. is a synonym of: Myrsine subsessilis subsp. cryptostemon
- Myrsine subsessilis subsp. cryptostemon
- Myrsine urceolata
- Myrsine variabilis
- Myrtaceae Gen. Nov. sp. (Boonjee BH 6589) is a synonym of: Stockwellia quadrifida
- Myrtella obtusa (Endl.) A.J.Scott is a synonym of: Lithomyrtus obtusa
- Myrtus australis (H.L.Wendl. ex Link) Spreng. is a synonym of: Syzygium australe
- Myrtus beckleri F.Muell. is a synonym of: Archirhodomyrtus beckleri
- Myrtus bidwillii Bentham is a synonym of: Gossia bidwillii
- Myrtus cymiflora F.Muell. is a synonym of: Archirhodomyrtus beckleri
- Myrtus exaltata F.M.Bailey is a synonym of: Syzygium luehmannii
- Myrtus hillii Benth. is a synonym of: Gossia hillii
- Myrtus lasioclada F.Muell. is a synonym of: Lenwebbia lasioclada
- Myrtus leucadendra L. is a synonym of: Melaleuca leucadendra
- Myrtus metrosideros F.M.Bailey is a synonym of: Uromyrtus metrosideros
- Myrtus monosperma F. Mueller is a synonym of: Gossia lucida
- Myrtus nitida J.F. Gmelin is a synonym of: Gossia lucida
- Myrtus opaca C.T. White is a synonym of: Gossia hillii
- Myrtus pubiflora C.T.White is a synonym of: Gossia pubiflora
- Myrtus racemulosa Bentham is a synonym of: Gossia bidwillii
- Myrtus racemulosa var. conferta Bentham is a synonym of: Gossia bidwillii
- Myrtus reinwardtiana Bl. is a synonym of: Eugenia reinwardtiana
- Myrtus shepherdii F. Mueller is a synonym of: Gossia shepherdii
- Myrtus smithii Spreng. is a synonym of: Syzygium smithii
- Myrtus trineura F.Muell. is a synonym of: Rhodomyrtus trineura subsp. trineura
N
- Nageia elata (Endl.) F.Muell. is a synonym of: Podocarpus elatus
- Nania chrysantha (F.Muell.) Kuntze is a synonym of: Xanthostemon chrysanthus
- Nania eucalyptoides (F.Muell.) Kuntze is a synonym of: Xanthostemon eucalyptoides
- Nania glomulifera (Sm.) Kuntze is a synonym of: Syncarpia glomulifera subsp. glomulifera
- Nania paradoxa (F.Muell.) Kuntze is a synonym of: Xanthostemon paradoxus
- Nania tetrapetala (F.Muell.) Kuntze is a synonym of: Xanthostemon umbrosus
- Nanopetalum myrianthum Hassk. is a synonym of: Cleistanthus myrianthus
- Nauclea cadamba Roxb. is a synonym of: Neolamarckia cadamba
- Nauclea glabra Roxb. is a synonym of: Neonauclea glabra
- Nauclea gordoniana F.M.Bailey is a synonym of: Neonauclea glabra
- Nauclea orientalis
- Neisosperma kilneri
- Neisosperma poweri
- Nelitris humilis G.Don is a synonym of: Decaspermum humile
- Nelitris timon (Spreng.) Britten is a synonym of: Timonius timon var. timon
- Nemedra elaeagnoidea A.Juss. is a synonym of: Aglaia elaeagnoidea
- Neoachmandra cunninghamii (F.Muell.) W.J.de Wilde & Duyfjes is a synonym of: Zehneria cunninghamii
- Neoalsomitra capricornica
- Neoalsomitra clavigera
- Neoalsomitra trifoliolata (F.Muell.) Hutch. is a synonym of: Neoalsomitra clavigera
- Neofabricia myrtifolia
- Neolamarckia cadamba
- Neolitsea brassii
- Neolitsea dealbata
- Neololeba atra
- Neonauclea glabra
- Neonotonia wightii
- Neorites kevedianus
- Neoroepera banksii
- Neoroepera buxifolia
- Neosepicaea jucunda
- Neosepicaea viticoides
- Neostrearia fleckeri
- Nepenthes albolineata F.M.Bailey is a synonym of: Nepenthes mirabilis
- Nepenthes alicae F.M.Bailey is a synonym of: Nepenthes mirabilis
- Nepenthes armbrustae F.M.Bailey is a synonym of: Nepenthes mirabilis
- Nepenthes bernaysii F.M.Bailey is a synonym of: Nepenthes mirabilis
- Nepenthes cholmondeleyi F.M.Bailey is a synonym of: Nepenthes mirabilis
- Nepenthes garrawayae F.M.Bailey is a synonym of: Nepenthes mirabilis
- Nepenthes jardinei F.M.Bailey is a synonym of: Nepenthes mirabilis
- Nepenthes kennedyana F.Muell. is a synonym of: Nepenthes mirabilis
- Nepenthes kennedyi F.Muell. ex Benth. is a synonym of: Nepenthes mirabilis
- Nepenthes mirabilis
- Nepenthes moorei F.M.Bailey is a synonym of: Nepenthes mirabilis
- Nepenthes pascoensis F.M.Bailey is a synonym of: Nepenthes mirabilis
- Nepenthes phyllamphora Willd. is a synonym of: Nepenthes mirabilis
- Nepeta pectinata L. is a synonym of: Mesosphaerum pectinatum
- Nephelium beckleri Benth. is a synonym of: Arytera divaricata
- Nephelium callarrie J.F.Bailey is a synonym of: Castanospora alphandii
- Nephelium connatum (F.Muell.) Benth. is a synonym of: Alectryon connatus
- Nephelium divaricatum (F.Muell.) Benth. is a synonym of: Arytera divaricata
- Nephelium diversifolium (F.Muell.) F.Muell. is a synonym of: Alectryon diversifolius
- Nephelium lautererianum F.M.Bailey is a synonym of: Mischarytera lautereriana
- Nephelium semicinereum F.Muell. is a synonym of: Alectryon semicinereus
- Nephelium subdentatum Benth. is a synonym of: Alectryon subdentatus
- Nephelium tomentosum F.Muell. is a synonym of: Alectryon tomentosus
- Nesodaphne obtusifolia (Meisn.) Benth. is a synonym of: Beilschmiedia obtusifolia
- Nicandra physalodes
- Nicotiana debneyi Domin is a synonym of: Nicotiana forsteri
- Nicotiana forsteri
- Nicotiana suaveolens var. parviflora Benth. is a synonym of: Nicotiana forsteri
- Nicotiana tabacum
- Nicotiana wuttkei
- Niemeyera antiloga (F.Muell.) T.D.Penn. is a synonym of: Amorphospermum antilogum
- Niemeyera discolor
- Niemeyera prunifera
- Niemeyera sp. Mt Lewis (A.K.Irvine 1402) is a synonym of: Niemeyera discolor
- Noahdendron nicholasii
- Normanbya normanbyi
- Notelaea microcarpa
- Notelaea microcarpa R.Br. var. microcarpa is a synonym of: Notelaea microcarpa
- Notelaea sp. Elcho Island (C.R.Dunlop 7597)
- Nothocnide repanda
- Nothopanax elegans (C.Moore) Seem. is a synonym of: Polyscias elegans
- Nothopanax macgillivrayi Seem. is a synonym of: Polyscias macgillivrayi
- Nothorites megacarpus
- Nothothixos cornifolius var. angustifolius Oliver is a synonym of: Notothixos cornifolius
- Nothothixos incanus var. cornifolius (Oliver) Maiden & Betche is a synonym of: Notothixos cornifolius
- Notonia wightii Graham ex Wight & Arn. is a synonym of: Neonotonia wightii
- Notothixos cornifolius
- Notothixos cornifolius var. subaureus (Oliver) Bailey is a synonym of: Notothixos subaureus
- Notothixos incanus var. subaureus (Oliver) C. Moore & Betche is a synonym of: Notothixos subaureus
- Notothixos leiophyllus
- Notothixos subaureus
- Notothixos subaureus var. cinereus Blakely is a synonym of: Notothixos subaureus
- Nyctanthes elongata Bergius is a synonym of: Jasminum elongatum
- Nyctererisiton lanceolatum Blume is a synonym of: Chrysophyllum roxburghii
- Nyctocalos jucundum (F.Muell.) Seem. is a synonym of: Neosepicaea jucunda
O
- Ochna serrulata
- Ochrocarpos touriga (C.T.White & W.D.Francis) L.S.Sm. is a synonym of: Mammea touriga
- Ochrosia calocarpa (Hassk.) Miq. is a synonym of: Ochrosia elliptica
- Ochrosia elliptica
- Ochrosia elliptica Labill. f. elliptica is a synonym of: Ochrosia elliptica
- Ochrosia minima
- Ochrosia newelliana F.M.Bailey is a synonym of: Neisosperma poweri
- Ochrosia poweri F.M.Bailey is a synonym of: Neisosperma poweri
- Ocimum aristatum Blume is a synonym of: Orthosiphon aristatus
- Ocimum scutellarioides L. is a synonym of: Coleus scutellarioides
- Ocimum tenuiflorum var. anisodorum (F.Muell.) Domin is a synonym of: Basilicum polystachyon
- Octoclinis macleayana F.Muell. is a synonym of: Callitris macleayana
- Ocymum polystachyon L. is a synonym of: Basilicum polystachyon
- Odontonema strictum (Nees) Kuntze is a synonym of: Odontonema tubaeforme
- Odontonema tubaeforme
- Oenothera octovalvis Jacq. is a synonym of: Ludwigia octovalvis
- Olax imbricata
- Olax pendula
- Oldenlandia biflora
- Oldenlandia galioides
- Oldenlandia polyclada
- Olea paniculata
- Olea thozettii Pancher & Sebert is a synonym of: Olea paniculata
- Olearia canescens
- Olearia stellulata var. canescens Benth. is a synonym of: Olearia canescens
- Omalanthus novo-guineensis (Warb.) Schum. is a synonym of: Homalanthus novo-guineensis
- Omphalea celata
- Omphalea papuana
- Omphalea queenslandiae
- Operculina riedeliana
- Ophiorrhiza australiana Benth. is a synonym of: Ophiorrhiza australiana subsp. australiana
- Ophiorrhiza australiana subsp. australiana
- Ophiorrhiza australiana subsp. heterostyla
- Opilia amentacea
- Opisthiolepis heterophylla
- Oplismenus aemulus (R.Br.) Roem. & Schult. is a synonym of: Oplismenus hirtellus
- Oplismenus burmanni
- Oplismenus compositus
- Oplismenus hirtellus
- Oplismenus hirtellus subsp. imbecillis (R.Br.) U.Scholz is a synonym of: Oplismenus hirtellus
- Oplismenus imbecillis (R.Br.) Roem. & Schult. is a synonym of: Oplismenus hirtellus
- Oplismenus mollis
- Oplismenus undulatifolius var. mollis Domin is a synonym of: Oplismenus mollis
- Opuntia stricta
- Opuntia tomentosa
- Orania appendiculata (F.M. Bailey) Domin is a synonym of: Oraniopsis appendiculata
- Orania beccarii F.M. Bailey is a synonym of: Oraniopsis appendiculata
- Oraniopsis appendiculata
- Orchis triplicata Willem. is a synonym of: Calanthe triplicata
- Oreocallis wickhamii (F.Muell.) Sleumer is a synonym of: Alloxylon wickhamii
- Oreocallis wickhamii W.Hill is a synonym of: Alloxylon wickhamii
- Oreodaphne bowiei Walp. is a synonym of: Cryptocarya laevigata
- Oreodendron biflorum C.T.White is a synonym of: Phaleria biflora
- Orites excelsa R.Br. var. excelsa is a synonym of: Orites excelsus
- Orites excelsa var. fissifolia F.Muell. is a synonym of: Orites excelsus
- Orites excelsus
- Orites fragrans F.M.Bailey is a synonym of: Orites excelsus
- Orites fragrans F.M.Bailey is a synonym of: Orites excelsus
- Orites megacarpa A.S.George & B.Hyland is a synonym of: Nothorites megacarpus
- Orites racemosa C.T.White is a synonym of: Sphalmium racemosum
- Orites sp. Devils Thumb (P.I.Forster PIF10720) is a synonym of: Hollandaea diabolica
- Orites sp. Pinnacle Rock Track (WWC 867) is a synonym of: Hollandaea diabolica
- Ormosia ormondii
- Ornitrophe serrata Roxb. is a synonym of: Allophylus cobbe
- Orthopogon aemulus R.Br. is a synonym of: Oplismenus hirtellus
- Orthopogon imbecillis R.Br. is a synonym of: Oplismenus hirtellus
- Orthosiphon aristatus
- Osbeckia australiana
- Osbeckia koolpinyahensis O.Schwarz is a synonym of: Osbeckia australiana
- Osbeckia perangusta F.Muell. is a synonym of: Osbeckia australiana
- Osbeckia rotundifolia Sm. is a synonym of: Dissotis rotundifolia
- Ostrearia australiana
- Otanthera bracteata Korth. is a synonym of: Melastoma cyanoides
- Otanthera cyanoides (Sm.) Triana is a synonym of: Melastoma cyanoides
- Otanthera queenslandica Domin is a synonym of: Melastoma cyanoides
- Ottochloa nodosa
- Owenia cerasifera F.Muell. is a synonym of: Pleiogynium timoriense
- Owenia venosa
- Oxalis chnoodes
- Oxalis corniculata
- Oxera splendida
- Oxydectes insularis (Baill.) Kuntze is a synonym of: Croton insularis
- Oxystelma carnosum R.Br. is a synonym of: Cynanchum carnosum
- Ozothamnus cassinioides
- Ozothamnus diosmifolius
P
- Pachygone hullsii (F.Muell.) F.Muell. is a synonym of: Pachygone ovata
- Pachygone longifolia F.M.Bailey is a synonym of: Parapachygone longifolia
- Pachygone ovata
- Pachygone ovata var. dasyphylla Miq. is a synonym of: Pachygone ovata
- Pachygone pubescens Benth. is a synonym of: Pachygone ovata
- Pachyrhizus erosus
- Pagetia dietrichiae Domin is a synonym of: Bosistoa medicinalis
- Pagetia medicinalis F.Muell. is a synonym of: Bosistoa medicinalis
- Pagiantha pandacaqui (Lam.) Markgr. is a synonym of: Tabernaemontana pandacaqui
- Palaquium galactoxylon
- Palmeria coriacea
- Palmeria hypotephra
- Palmeria scandens
- Palmeria scandens var. typica Domin is a synonym of: Palmeria scandens
- Panax cephalobotrys F.Muell. is a synonym of: Cephalaralia cephalobotrys
- Panax elegans C.Moore & F.Muell. is a synonym of: Polyscias elegans
- Panax macdowallii F.Muell. is a synonym of: Polyscias mollis
- Panax macgillivrayi (Seem.) Benth. is a synonym of: Polyscias macgillivrayi
- Panax macrosciadeus F.Muell. is a synonym of: Mackinlaya macrosciadea
- Panax mollis Benth. is a synonym of: Polyscias mollis
- Panax murrayi F.Muell. is a synonym of: Polyscias murrayi
- Panax zippelianum Miq. is a synonym of: Polyscias zippeliana
- Pancratium amboinensis L. is a synonym of: Proiphys amboinensis
- Pandanus angulatus H.St.John is a synonym of: Pandanus cookii
- Pandanus australiensis H.St.John is a synonym of: Pandanus cookii
- Pandanus citraceus H.St.John is a synonym of: Pandanus solmslaubachii
- Pandanus cochleatus H.St.John is a synonym of: Pandanus conicus
- Pandanus conicus
- Pandanus cookii
- Pandanus dammannii
- Pandanus endeavourensis H.St.John is a synonym of: Pandanus cookii
- Pandanus exarmatus H.St.John is a synonym of: Pandanus cookii
- Pandanus ferrimontanus H.St.John is a synonym of: Pandanus cookii
- Pandanus gemmifer
- Pandanus humifer H.St.John is a synonym of: Pandanus cookii
- Pandanus kennedyensis H.St.John is a synonym of: Pandanus cookii
- Pandanus kurandaensis H.St.John is a synonym of: Pandanus solmslaubachii
- Pandanus lauterbachii K.Schum. & Warb. ex Warb. is a synonym of: Benstonea lauterbachii
- Pandanus monticola F.Muell. is a synonym of: Benstonea monticola
- Pandanus mossmanicus H.St.John is a synonym of: Pandanus solmslaubachii
- Pandanus multicarpelatus H.St.John is a synonym of: Pandanus solmslaubachii
- Pandanus oblatus
- Pandanus papillosus H.St.John is a synonym of: Pandanus solmslaubachii
- Pandanus pluriangulatus H.St.John is a synonym of: Pandanus cookii
- Pandanus pluvisilvaticus H.St.John is a synonym of: Benstonea monticola
- Pandanus punctatus H.St.John is a synonym of: Pandanus solmslaubachii
- Pandanus radicifer H.St.John is a synonym of: Pandanus solmslaubachii
- Pandanus rivularis H.St.John is a synonym of: Pandanus solmslaubachii
- Pandanus solmslaubachii
- Pandanus sp. Russell River
- Pandanus sphaericus H.St.John is a synonym of: Pandanus conicus
- Pandanus subinermis H.St.John is a synonym of: Pandanus cookii
- Pandanus tectorius
- Pandanus truncatus H.St.John is a synonym of: Pandanus cookii
- Pandanus whitei Martelli is a synonym of: Pandanus cookii
- Pandanus X nullumiae R.Tucker is a synonym of: Pandanus solmslaubachii
- Pandanus yalna R.Tucker is a synonym of: Pandanus solmslaubachii
- Pandanus zea
- Pandorea australis (R.Br.) Spach is a synonym of: Pandorea pandorana
- Pandorea australis (R.Br.) Spach subsp. australis is a synonym of: Pandorea pandorana
- Pandorea australis (R.Br.) Spach var. australis is a synonym of: Pandorea pandorana
- Pandorea australis subsp. linearis (Bailey) Steenis is a synonym of: Pandorea pandorana
- Pandorea australis subsp. meonantha (Link) Steenis is a synonym of: Pandorea pandorana
- Pandorea australis subsp. pandorea (Vent.) Steenis is a synonym of: Pandorea pandorana
- Pandorea australis var. meonantha (Link) Domin is a synonym of: Pandorea pandorana
- Pandorea australis var. oxleyi (DC.) Domin is a synonym of: Pandorea pandorana
- Pandorea jasminoides
- Pandorea nervosa
- Pandorea oxleyi (DC.) Domin is a synonym of: Pandorea pandorana
- Pandorea pandorana
- Pandorea pandorana (Andrews) Steenis subsp. pandorana is a synonym of: Pandorea pandorana
- Pandorea pandorana (Andrews) Steenis subsp. pandorana is a synonym of: Pandorea pandorana
- Pandorea pandorana subsp. pandorana P.S.Green is a synonym of: Pandorea pandorana
- Panicum accrescens Trin. is a synonym of: Cyrtococcum accrescens
- Panicum aequabile Domin is a synonym of: Ottochloa nodosa
- Panicum andrewsii Rendle is a synonym of: Panicum trichoides
- Panicum burmanni Retz. is a synonym of: Oplismenus burmanni
- Panicum chillagoanum
- Panicum compositum L. is a synonym of: Oplismenus compositus
- Panicum dactylon L. is a synonym of: Cynodon dactylon
- Panicum delicatum Hughes is a synonym of: Panicum mindanaense
- Panicum deschampsioides Domin is a synonym of: Arthragrostis deschampsioides
- Panicum hirtellum L. is a synonym of: Oplismenus hirtellus
- Panicum incomtum
- Panicum mindanaense
- Panicum palmaefolium J.Koenig is a synonym of: Setaria palmifolia
- Panicum patens L. is a synonym of: Cyrtococcum patens
- Panicum pubigerum Roem. & Schult. is a synonym of: Urochloa pubigera
- Panicum reptans L. is a synonym of: Urochloa reptans
- Panicum subquadriparum Trin. is a synonym of: Urochloa subquadripara
- Panicum trichoides
- Panicum uncinulatum R.Br. is a synonym of: Ancistrachne uncinulata
- Paphia meiniana
- Paracoffea brassii J.-F.Leroy is a synonym of: Coffea brassii
- Paramignya trimera (Oliver) Burkill is a synonym of: Luvunga monophylla
- Paramignya trimera (Oliver) Burkill is a synonym of: Luvunga monophylla
- Parapachygone longifolia
- Pararchidendron pruinosum
- Pararistolochia australopithecurus Mich.J.Parsons is a synonym of: Aristolochia australopithecurus
- Pararistolochia deltantha (F.Muell.) Mich.J.Parsons is a synonym of: Aristolochia deltantha
- Pararistolochia peninsulensis Mich.J.Parsons is a synonym of: Aristolochia peninsulensis
- Pararistolochia praevenosa (F.Muell.) Michael J.Parsons is a synonym of: Aristolochia praevenosa
- Pararistolochia sparusifolia Mich.J.Parsons is a synonym of: Aristolochia sparusifolia
- Paraserianthes toona (F.M.Bailey) I.C.Nielsen is a synonym of: Falcataria toona
- Paratrophis australiana C.T.White is a synonym of: Streblus glaber subsp. australianus
- Parietaria indica L. is a synonym of: Pouzolzia zeylanica
- Parietaria zeylanica L. is a synonym of: Pouzolzia zeylanica
- Parinari corymbosum (Blume) Miq. is a synonym of: Maranthes corymbosa
- Parinari griffithianum Benth. is a synonym of: Maranthes corymbosa
- Parinari nonda
- Parkinsonia aculeata
- Parmentiera aculeata
- Parsonsia alboflavescens
- Parsonsia bartlensis
- Parsonsia blakeana
- Parsonsia densivestita
- Parsonsia eucalyptophylla
- Parsonsia ferruginea
- Parsonsia glaucescens F.Muell. is a synonym of: Parsonsia lanceolata
- Parsonsia grayana
- Parsonsia helicandra Hook. & Arn. is a synonym of: Parsonsia alboflavescens
- Parsonsia laevigata (Moon) Alston is a synonym of: Parsonsia alboflavescens
- Parsonsia lanceolata
- Parsonsia lanceolata var. angustifolia Domin is a synonym of: Parsonsia lanceolata
- Parsonsia lanceolata var. mollis (R.Br.) Maiden & Betche is a synonym of: Parsonsia lanceolata
- Parsonsia langiana
- Parsonsia larcomensis
- Parsonsia latifolia
- Parsonsia lenticellata
- Parsonsia longipetiolata
- Parsonsia mollis R.Br. is a synonym of: Parsonsia lanceolata
- Parsonsia nesophila F.M.Bailey is a synonym of: Parsonsia velutina
- Parsonsia paddisonii R.T.Baker is a synonym of: Parsonsia lanceolata
- Parsonsia plaesiophylla
- Parsonsia rotata
- Parsonsia sp. (Mt Glastonbury, P.I.Forster 9296) is a synonym of: Parsonsia longipetiolata
- Parsonsia sp. (Pinnacle Rock P.I.Forster 10702) is a synonym of: Parsonsia grayana
- Parsonsia straminea
- Parsonsia straminea var. glabrata Pichon is a synonym of: Parsonsia straminea
- Parsonsia velutina
- Parsonsia velutina var. glabrescens Benth. is a synonym of: Parsonsia velutina
- Parsonsia ventricosa
- Parsonsia wildensis
- Parsonsia wongabelensis
- Paspalum conjugatum
- Paspalum dilatatum
- Paspalum fissifolium Raddi is a synonym of: Axonopus fissifolius
- Paspalum paniculatum
- Paspalum scrobiculatum
- Passiflora alba Link & Otto is a synonym of: Passiflora subpeltata
- Passiflora aurantia f. pubescens (Bailey) P.S.Green is a synonym of: Passiflora aurantia var. aurantia
- Passiflora aurantia G.Forst. is a synonym of: Passiflora aurantia var. aurantia
- Passiflora aurantia G.Forst. f. aurantia is a synonym of: Passiflora aurantia var. aurantia
- Passiflora aurantia var. aurantia
- Passiflora aurantia var. banksii (Benth.) F.M.Bailey is a synonym of: Passiflora aurantia var. aurantia
- Passiflora aurantia var. pubescens F.M.Bailey is a synonym of: Passiflora aurantia var. aurantia
- Passiflora aurantioides
- Passiflora baileyana Domin is a synonym of: Passiflora aurantia var. aurantia
- Passiflora banksii Benth. is a synonym of: Passiflora aurantia var. aurantia
- Passiflora banksii Benth. var. banksii is a synonym of: Passiflora aurantia var. aurantia
- Passiflora banksii var. brachystephanea (F.Muell.) Domin is a synonym of: Passiflora aurantia var. aurantia
- Passiflora banksii var. typica Domin is a synonym of: Passiflora aurantia var. aurantia
- Passiflora brachystephanea (F.Muell.) Benth. is a synonym of: Passiflora aurantia var. aurantia
- Passiflora edulis
- Passiflora foetida
- Passiflora foetida var. hispida Killip is a synonym of: Passiflora foetida
- Passiflora glabra J.C.Wendl. is a synonym of: Passiflora aurantia var. aurantia
- Passiflora herbertiana
- Passiflora herbertiana Ker Gawl. subsp. herbertiana is a synonym of: Passiflora herbertiana
- Passiflora herbertiana Ker Gawl. var. herbertiana is a synonym of: Passiflora herbertiana
- Passiflora herbertiana var. caleyana (DC.) Mast. is a synonym of: Passiflora herbertiana
- Passiflora kuranda
- Passiflora sp. Kuranda (BH 12896) is a synonym of: Passiflora kuranda
- Passiflora suberosa
- Passiflora suberosa var. minima Mast. is a synonym of: Passiflora suberosa
- Passiflora subpeltata
- Passiflora verruculosa Weinm. is a synonym of: Passiflora herbertiana
- Pavetta australiensis
- Pavetta brownii Bremek. is a synonym of: Pavetta brownii var. brownii
- Pavetta brownii Bremek. is a synonym of: Pavetta kimberleyana
- Pavetta brownii var. brownii
- Pavetta brownii var. glabra Bremek. is a synonym of: Pavetta brownii var. brownii
- Pavetta brownii var. pubescens Bremek. is a synonym of: Pavetta brownii var. brownii
- Pavetta granitica
- Pavetta indica L. is a synonym of: Pavetta australiensis
- Pavetta indica var. obovata Domin is a synonym of: Pavetta brownii var. brownii
- Pavetta indica var. stenophylla Domin is a synonym of: Pavetta granitica
- Pavetta indica var. typica Domin is a synonym of: Pavetta australiensis
- Pavetta indica var.tomentosa (Roxb.) J.D.Hooker is a synonym of: Pavetta kimberleyana
- Pavetta insulana Bremek. is a synonym of: Pavetta brownii var. brownii
- Pavetta kimberleyana
- Pavetta modesta Bremek. is a synonym of: Pavetta granitica
- Pavetta muelleri
- Pavetta tomentosa Sm. is a synonym of: Pavetta granitica
- Pavonia calycina
- Peekeliopanax spectabilis Harms is a synonym of: Polyscias spectabilis
- Peltophorum ferrugineum (Decne.) Benth. is a synonym of: Peltophorum pterocarpum
- Peltophorum inerme (Roxb.) Naves is a synonym of: Peltophorum pterocarpum
- Peltophorum pterocarpum
- Pemphis acidula
- Pendressia wardellii
- Pennantia cunninghamii
- Pentapanax bellendenkerensis F.M.Bailey is a synonym of: Polyscias bellendenkerensis
- Pentapanax willmottii F.Muell. is a synonym of: Polyscias willmottii
- Peperomia aemula (Endl.) Endl. is a synonym of: Peperomia tetraphylla
- Peperomia affinis Domin ex F.M.Bailey is a synonym of: Peperomia tetraphylla
- Peperomia arabica var. floribunda Miq. is a synonym of: Peperomia blanda var. floribunda
- Peperomia baueriana var. brisbaniana C.DC. is a synonym of: Peperomia blanda var. floribunda
- Peperomia bellendenkerensis
- Peperomia blanda var. floribunda
- Peperomia blanda var. leptostachya (Hook. & Arn.) Dull is a synonym of: Peperomia blanda var. floribunda
- Peperomia enervis
- Peperomia hunteriana
- Peperomia johnsonii DC. is a synonym of: Peperomia enervis
- Peperomia leptostachya Hook. & Arn. is a synonym of: Peperomia blanda var. floribunda
- Peperomia leptostachya var. laxiflora Miq. is a synonym of: Peperomia blanda var. floribunda
- Peperomia pellucida
- Peperomia reflexa f. norfolkensis Miq. is a synonym of: Peperomia tetraphylla
- Peperomia reflexa var. aemula (Endl.) C.DC. is a synonym of: Peperomia tetraphylla
- Peperomia reflexa var. valantoides (Miq.) C.DC. is a synonym of: Peperomia blanda var. floribunda
- Peperomia tetraphylla
- Peperomia valantoides Miq. is a synonym of: Peperomia blanda var. floribunda
- Pergularia cinerascens (R.Br.) Spreng. is a synonym of: Tylophora cinerascens
- Pergularia rostrata (R.Br.) Spreng. is a synonym of: Marsdenia rostrata
- Pergularia velutina (R.Br.) Spreng. is a synonym of: Marsdenia velutina
- Pergularia viridiflora (R.Br.) Spreng. is a synonym of: Marsdenia viridiflora
- Peripentadenia mearsii
- Peripentadenia phelpsii
- Peripleura bicolor (N.T.Burb.) G.L.Nesom is a synonym of: Vittadinia bicolor
- Peripleura scabra (DC.) G.L.Nesom is a synonym of: Vittadinia scabra
- Periploca alboflavescens Dennst. is a synonym of: Parsonsia alboflavescens
- Peristrophe brassii
- Perotis rara
- Perrottetia alpestris (Blume) Loes. is a synonym of: Perrottetia arborescens
- Perrottetia alpestris subsp. moluccana (Blume) Ding Hou is a synonym of: Perrottetia arborescens
- Perrottetia arborescens
- Persea americana
- Persea baileyana F.M.Bailey is a synonym of: Cinnamomum baileyanum
- Persicaria hydropiper
- Persicaria hydropiper (L.) Spach is a synonym of: Persicaria hydropiper
- Persicaria orientalis
- Persoonia amaliae
- Pervinca rosea (L.) Moench is a synonym of: Catharanthus roseus
- Petalostigma banksii
- Petraeovitex multiflora
- Petrea multiflora Sm. is a synonym of: Petraeovitex multiflora
- Phacellothrix cladochaeta
- Phaius australis
- Phaleria biflora
- Phaleria blumei var. latifolia Benth. is a synonym of: Phaleria octandra
- Phaleria chermsideana
- Phaleria clerodendron
- Phaleria neumannii (F.Muell.) Benth. is a synonym of: Phaleria octandra
- Phaleria octandra
- Phaleria pedunculata C.T.White is a synonym of: Phaleria octandra
- Phanera cunninghamii Benth. is a synonym of: Bauhinia cunninghamii
- Pharbitis nil (L.) Choisy is a synonym of: Ipomoea nil
- Pharus urceolatus Roxb. is a synonym of: Scrotochloa urceolata
- Phaseolus atropurpureus DC. is a synonym of: Macroptilium atropurpureum
- Phaseolus marinus Burm. is a synonym of: Vigna marina
- Phebalium longifolium
- Phebalium squamulosum subsp. longifolium (S.T.Blake) Paul G.Wilson is a synonym of: Phebalium longifolium
- Philydrum lanuginosum
- Phlebocalymna lobospora F.Muell. is a synonym of: Sphenostemon lobosporus
- Phlomis decemdentata Willd. is a synonym of: Leucas decemdentata
- Phlomis nepetifolia L. is a synonym of: Leonotis nepetifolia
- Phragmites karka
- Phragmites vallatoria (Pluk. ex L.) Veldkamp is a synonym of: Phragmites karka
- Phrygilanthus obtusifolius Merr. is a synonym of: Cecarria obtusifolia
- Phylacium bracteosum
- Phyllamphora mirabilis Lour. is a synonym of: Nepenthes mirabilis
- Phyllanthera grayi
- Phyllanthus albiflorus Mull.Arg. is a synonym of: Synostemon albiflorus
- Phyllanthus brassii
- Phyllanthus clamboides
- Phyllanthus cuscutiflorus
- Phyllanthus ferdinandi var. supra-axillaris Benth. is a synonym of: Glochidion sumatranum
- Phyllanthus ferdinandii var. ? mollis Benth. is a synonym of: Glochidion philippicum
- Phyllanthus gasstroemii Mull.Arg. is a synonym of: Phyllanthus gunnii
- Phyllanthus gunnii
- Phyllanthus hypospodius
- Phyllanthus lamprophyllus
- Phyllanthus lobocarpus Benth. is a synonym of: Glochidion lobocarpum
- Phyllanthus microcladus
- Phyllanthus novae-hollandiae
- Phyllanthus praelongipes
- Phyllanthus reticulatus Poir. is a synonym of: Phyllanthus novae-hollandiae
- Phyllanthus subcrenulatus
- Phyllanthus tenellus
- Phyllanthus xerocarpus O.Schwarz is a synonym of: Glochidion xerocarpum
- Physalis angulata
- Physalis parviflora R.Br. is a synonym of: Physalis angulata
- Physalis peruviana
- Phytolacca octandra
- Pilidiostigma papuanum
- Pilidiostigma parviflorum Burret is a synonym of: Archirhodomyrtus beckleri
- Pilidiostigma recurvum (C.T.White) A.J.Scott is a synonym of: Pilidiostigma papuanum
- Pilidiostigma tetramerum
- Pilidiostigma tropicum
- Piliostigma acidum (Rein. ex Korthal.) Benth is a synonym of: Bauhinia malabarica
- Piliostigma malabaricum (Roxb.) Benth. is a synonym of: Bauhinia malabarica
- Piliostigma malabaricum var. acidum (rein. ex Korth.) de Wit is a synonym of: Bauhinia malabarica
- Pilocarpus amara (Blanco) Blanco is a synonym of: Lunasia amara
- Pilostigma whitei (Blakely) Barlow is a synonym of: Amyema whitei
- Pimelea altior F.Muell. is a synonym of: Pimelea latifolia subsp. altior
- Pimelea altior var. longifolia Domin is a synonym of: Pimelea latifolia subsp. latifolia
- Pimelea aquilonia
- Pimelea chlorina
- Pimelea latifolia R.Br. is a synonym of: Pimelea latifolia subsp. latifolia
- Pimelea latifolia subsp. latifolia
- Pimelea latifolia subsp. altior
- Pimelea leptostachya Benth. is a synonym of: Pimelea sericostachya
- Pimelea linifolia
- Pimelea linifolia Sm. subsp. linifolia is a synonym of: Pimelea linifolia
- Pimelea linifolia Sm. var. linifolia is a synonym of: Pimelea linifolia
- Pimelea sericostachya
- Pimelea sp. Bakers Blue Mt. (D.G.Fell DF1588) is a synonym of: Pimelea chlorina
- Pimelodendron amboinicum
- Piper aemulum Endl. is a synonym of: Peperomia tetraphylla
- Piper australasicum C.DC. is a synonym of: Piper hederaceum var. hederaceum
- Piper banksii Miq. is a synonym of: Piper caninum
- Piper caninum
- Piper fungiforme
- Piper harveyanum Domin is a synonym of: Piper mestonii
- Piper hederaceum var. hederaceum
- Piper hederaceum var. longiorispicum
- Piper hugeianum (Miq.) Miq. is a synonym of: Piper hederaceum var. hederaceum
- Piper interruptum
- Piper macropiper
- Piper mestonii
- Piper novae-hollandiae Miq. is a synonym of: Piper hederaceum var. hederaceum
- Piper novae-hollandiae Miq. is a synonym of: Piper hederaceum var. hederaceum
- Piper novae-hollandiae var. Windsor Tableland (B.P. Hyland 5538) is a synonym of: Piper hederaceum var. longiorispicum
- Piper paramattense C. DC. is a synonym of: Piper hederaceum var. hederaceum
- Piper reflexa P.I.Forst. is a synonym of: Peperomia tetraphylla
- Piper reflexum L.f. is a synonym of: Peperomia tetraphylla
- Piper rothiana F.M.Bailey is a synonym of: Piper macropiper
- Piper rothiana F.M.Bailey var. rothiana is a synonym of: Piper macropiper
- Piper rothiana var. gracilescens Domin is a synonym of: Piper macropiper
- Piper sp. (Leo Creek BH 6367) is a synonym of: Piper fungiforme
- Piper sp. (Windsor Tableland BH 5538) is a synonym of: Piper hederaceum var. longiorispicum
- Piper sp. aff. abbreviatum is a synonym of: Piper fungiforme
- Piper sp. aff. caninum Blume is a synonym of: Piper hederaceum var. longiorispicum
- Piper sp. Leo Creek (B.P. Hyland 6367) is a synonym of: Piper fungiforme
- Piper subpeltatum Willd. is a synonym of: Piper umbellatum
- Piper tetraphyllum G.Forst. is a synonym of: Peperomia tetraphylla
- Piper triandrum F. Muell. is a synonym of: Piper interruptum
- Piper umbellatum
- Piper umbellatum var. subpeltatum (Willd.) C. DC. is a synonym of: Piper umbellatum
- Pipturus argenteus
- Pipturus argenteus var. calcicolus Domin is a synonym of: Pipturus argenteus
- Pipturus propinquus (Decne.) Wedd. is a synonym of: Pipturus argenteus
- Pisonia aculeata
- Pisonia brunoniana Endl. is a synonym of: Pisonia umbellifera
- Pisonia excelsa Blume is a synonym of: Pisonia umbellifera
- Pisonia grandis
- Pisonia inermis Jacq. is a synonym of: Pisonia grandis
- Pisonia mooriana F.Muell. is a synonym of: Pisonia umbellifera
- Pisonia umbellifera
- Pitaviaster haplophyllus
- Pithecellobium ferdinandi-muelleri Domin is a synonym of: Archidendron ramiflorum
- Pithecellobium grandiflorum Sol. ex Benth. is a synonym of: Archidendron grandiflorum
- Pithecellobium hendersonii F.Muell. is a synonym of: Archidendron hendersonii
- Pithecellobium lucyi (F.Muell.) Mohlenbr. is a synonym of: Archidendron lucyi
- Pithecellobium moniliferum (Decne.) Benth. is a synonym of: Cathormion umbellatum subsp. moniliforme
- Pithecellobium pentzkeanum (Ewart) Mohlenbr. is a synonym of: Archidendron ramiflorum
- Pithecellobium pruinosum Benth. is a synonym of: Pararchidendron pruinosum
- Pithecellobium ramiflorum (F.Muell.) F.M.Bailey is a synonym of: Archidendron ramiflorum
- Pithecellobium saman (Jacq.) Benth. is a synonym of: Samanea saman
- Pithecellobium sapindoides (A.Cunn. ex Sweet) Domin is a synonym of: Pararchidendron pruinosum
- Pithecellobium tozeri F.Muell. is a synonym of: Archidendron grandiflorum
- Pithecellobium vaillantii F.Muell. is a synonym of: Archidendron vaillantii
- Pittosporum angustifolium
- Pittosporum callicarpeum Domin is a synonym of: Pittosporum rubiginosum
- Pittosporum ferrugineum
- Pittosporum flavum Hook. is a synonym of: Hymenosporum flavum
- Pittosporum fulvum Rudge is a synonym of: Pittosporum revolutum
- Pittosporum hirsutum Link is a synonym of: Pittosporum revolutum
- Pittosporum linifolium R.Cunn. is a synonym of: Pittosporum ferrugineum
- Pittosporum moluccanum
- Pittosporum ovatifolium F.Muell. is a synonym of: Pittosporum ferrugineum
- Pittosporum queenslandicum Domin is a synonym of: Pittosporum ferrugineum
- Pittosporum revolutum
- Pittosporum revolutum Dryand. var. revolutum is a synonym of: Pittosporum revolutum
- Pittosporum revolutum var. tomentosum (Bonpl.) F.M.Bailey is a synonym of: Pittosporum revolutum
- Pittosporum rhombifolium A.Cunn. ex Hook. is a synonym of: Auranticarpa rhombifolia
- Pittosporum rubiginosum
- Pittosporum rubiginosum A.Cunn. subsp. rubiginosum is a synonym of: Pittosporum rubiginosum
- Pittosporum rubiginosum subsp. wingii (F.Muell.) R.C.Cooper is a synonym of: Pittosporum wingii
- Pittosporum sp. (Bamaga BH 3986 RFK) is a synonym of: Auranticarpa ilicifolia
- Pittosporum sp. (Forty Mile Scrub BG 4354) is a synonym of: Auranticarpa edentata
- Pittosporum sp. (Paperbark BH 2369RFK) is a synonym of: Auranticarpa papyracea
- Pittosporum sp. (Tree Form AKI 432) is a synonym of: Pittosporum trilobum
- Pittosporum spinescens
- Pittosporum tomentosum Bonpl. is a synonym of: Pittosporum revolutum
- Pittosporum trilobum
- Pittosporum venulosum
- Pittosporum wingii
- Pityrodia salviifolia
- Placospermum coriaceum
- Planchonella asterocarpon
- Planchonella brownlessiana (F.Muell.) P.Royen is a synonym of: Pleioluma brownlessiana
- Planchonella chartacea
- Planchonella cotinifolia (A.DC.) Dubard is a synonym of: Planchonella cotinifolia var. cotinifolia
- Planchonella cotinifolia var. cotinifolia
- Planchonella cotinifolia var. pubescens
- Planchonella euphlebia
- Planchonella euphlebia (F.Muell.) W.D.Francis var. euphlebia is a synonym of: Planchonella euphlebia
- Planchonella laurifolia (A.Rich.) Pierre is a synonym of: Pleioluma laurifolia
- Planchonella macrocarpa P.Royen is a synonym of: Pleioluma macrocarpa
- Planchonella myrsinifolia subsp. myrsinifolia
- Planchonella myrsinodendron
- Planchonella myrsinoides (Benth.) W.D.Francis is a synonym of: Planchonella myrsinifolia subsp. myrsinifolia
- Planchonella obovata
- Planchonella obovoidea H.J.Lam is a synonym of: Planchonella myrsinodendron
- Planchonella papyracea P.Royen is a synonym of: Pleioluma papyracea
- Planchonella pohlmaniana (F.Muell.) Pierre ex Dubard is a synonym of: Planchonella pohlmaniana var. pohlmaniana
- Planchonella pohlmaniana var. pohlmaniana
- Planchonella pohlmaniana var. asterocarpon P.Royen is a synonym of: Planchonella asterocarpon
- Planchonella pubescens (P.Royen) Swenson, Bartish & Munzinger is a synonym of: Planchonella cotinifolia var. pubescens
- Planchonella queenslandica P.Royen is a synonym of: Pleioluma queenslandica
- Planchonella ripicola P.Royen is a synonym of: Planchonella xylocarpa
- Planchonella sericea Dubard is a synonym of: Sersalisia sericea
- Planchonella singuliflora (C.T.White & W.D.Francis) P.Royen is a synonym of: Pleioluma singuliflora
- Planchonella sp. Mt. Lewis (B.Hyland 14048) is a synonym of: Pleioluma ferruginea
- Planchonella xerocarpa (Benth.) H.J.Lam is a synonym of: Pleioluma xerocarpa
- Planchonella xylocarpa
- Planchonia careya
- Planchonia crenata Miers is a synonym of: Planchonia careya
- Planchonia rupestris
- Plantago lanceolata
- Plantago major
- Platostoma longicorne
- Plectranthus amicorum S.T.Blake is a synonym of: Coleus amicorum
- Plectranthus apreptus S.T.Blake is a synonym of: Coleus apreptus
- Plectranthus australis R.Br. is a synonym of: Coleus australis
- Plectranthus congestus R.Br. is a synonym of: Coleus congestus
- Plectranthus diversus S.T.Blake is a synonym of: Coleus diversus
- Plectranthus dumicola P.I.Forst. is a synonym of: Coleus dumicola
- Plectranthus excelsus P.I.Forst. is a synonym of: Coleus excelsus
- Plectranthus foetidus Benth. is a synonym of: Coleus foetidus
- Plectranthus gratus S.T.Blake is a synonym of: Coleus gratus
- Plectranthus graveolens R.Br. is a synonym of: Coleus graveolens
- Plectranthus longicornis F.Muell. is a synonym of: Platostoma longicorne
- Plectranthus parviflorus R.Br. is a synonym of: Basilicum polystachyon
- Plectranthus parviflorus Willd. is a synonym of: Coleus australis
- Plectranthus scutellarioides (L.) R.Br. is a synonym of: Coleus scutellarioides
- Plectranthus sp. Font Hills (B.Gray 6336) is a synonym of: Coleus diversus
- Plectranthus spectabilis S.T.Blake is a synonym of: Coleus magnificus
- Plectranthus thalassoscopicus P.I.Forst. is a synonym of: Coleus thalassoscopicus
- Plectronia schultzii O.Schwarz is a synonym of: Cyclophyllum schultzii
- Pleiogynium cerasiferum (F.Muell.) R.Parker is a synonym of: Pleiogynium timoriense
- Pleiogynium cerasiferum (F.Muell.) R.Parker var. cerasiferum is a synonym of: Pleiogynium timoriense
- Pleiogynium cerasiferum var. glabratum Domin is a synonym of: Pleiogynium timoriense
- Pleiogynium solandri (Benth.) Engl. is a synonym of: Pleiogynium timoriense
- Pleiogynium timoriense
- Pleioluma brownlessiana
- Pleioluma ferruginea
- Pleioluma laurifolia
- Pleioluma macrocarpa
- Pleioluma papyracea
- Pleioluma pilosa
- Pleioluma queenslandica
- Pleioluma singuliflora
- Pleioluma xerocarpa
- Pleogyne australis
- Pleomele angustifolia
- Pleuranthodium racemigerum
- Pleurocitrus inodora (Bailey) T.Tanaka is a synonym of: Citrus inodora
- Pleurostylia opposita
- Plumbago zeylanica
- Podocarpus amara Blume is a synonym of: Prumnopitys amara
- Podocarpus dispermus
- Podocarpus elatus
- Podocarpus ensifolius Carriere is a synonym of: Podocarpus elatus
- Podocarpus grayae
- Podocarpus ladei F.M.Bailey is a synonym of: Prumnopitys ladei
- Podocarpus pedunculatus F.M.Bailey is a synonym of: Prumnopitys amara
- Podocarpus smithii
- Podopetalum ormondi F.Muell. is a synonym of: Ormosia ormondii
- Pogonatherum crinitum
- Poinciania regia Bojer ex Hook. is a synonym of: Delonix regia
- Polanisia viscosa (L.) DC. is a synonym of: Cleome viscosa
- Polanisia viscosa var. grandiflora Benth. is a synonym of: Cleome viscosa
- Polanisia viscosa var. speciosa Domin is a synonym of: Cleome viscosa
- Pollia crispata
- Pollia macrophylla
- Pollia macrophylla (R.Br.) Benth. var. macrophylla is a synonym of: Pollia macrophylla
- Polyalthia armitiana F.Muell. is a synonym of: Monoon australe
- Polyalthia australis (Benth.) Jessup is a synonym of: Monoon australe
- Polyalthia fruticans A.DC. is a synonym of: Uvaria micrantha
- Polyalthia fruticosa
- Polyalthia hispida
- Polyalthia holtzeana F.Muell. is a synonym of: Monoon australe
- Polyalthia johnsonii
- Polyalthia michaelii C.T.White is a synonym of: Monoon michaelii
- Polyalthia nitidissima (Dunal) Benth. is a synonym of: Huberantha nitidissima
- Polyalthia patinata Jessup is a synonym of: Monoon patinatum
- Polyalthia sp. (Wyvuri BH 2632RFK) is a synonym of: Monoon patinatum
- Polyalthia submontana (Jessup) B.Xue & R.M.K.Saunders is a synonym of: Polyalthia submontana subsp. submontana
- Polyalthia submontana subsp. submontana
- Polyalthia submontana subsp. sessiliflora
- Polyalthia xanthocarpa
- Polyaulax cylindrocarpa (Burck) Backer is a synonym of: Meiogyne cylindrocarpa
- Polyaulax sp. (Mt Lewis LWJ 554) is a synonym of: Meiogyne verrucosa
- Polyaulax sp. (Tingle Scrub DGF 2676) is a synonym of: Meiogyne trichocarpa
- Polygala paniculata
- Polygonum hydropiper L. is a synonym of: Persicaria hydropiper
- Polygonum orientale L. is a synonym of: Persicaria orientalis
- Polygonum zippelii Meisn. is a synonym of: Muehlenbeckia zippelii
- Polyosma alangiacea
- Polyosma hirsuta
- Polyosma reducta
- Polyosma rhytophloia
- Polyosma rigidiuscula
- Polyosma sp. Mt Bellenden Ker (B.Hyland 2524RFK)
- Polyosma sp. Mt Lewis (B.Hyland 25241RFK)
- Polyphragmon sericeum Desf. is a synonym of: Timonius timon var. timon
- Polypodium laciniatum Burm f. is a synonym of: Epipremnum pinnatum
- Polyscias australiana
- Polyscias bellendenkerensis
- Polyscias elegans
- Polyscias macdowallii (F.Muell.) Domin is a synonym of: Polyscias mollis
- Polyscias macgillivrayi
- Polyscias mollis
- Polyscias murrayi
- Polyscias nodosa
- Polyscias purpurea
- Polyscias spectabilis
- Polyscias willmottii
- Polyscias zippeliana
- Pomaderris argyrophylla
- Pongamia glabra var. minor Benth. is a synonym of: Pongamia pinnata var. minor
- Pongamia pinnata (L.) Pierre is a synonym of: Pongamia pinnata var. pinnata
- Pongamia pinnata var. hannii Domin is a synonym of: Pongamia pinnata var. minor
- Pongamia pinnata var. minor
- Pongamia pinnata var. pinnata
- Pongamia pinnata var. typica Domin is a synonym of: Pongamia pinnata var. pinnata
- Pongamia sp. McIlwraith (B.Hyland 3295RFK) is a synonym of: Pongamia pinnata var. minor
- Pootia grandifolia Miq. is a synonym of: Voacanga grandifolia
- Pootia grandifolia Miq. is a synonym of: Voacanga grandifolia
- Popowia australis Benth. is a synonym of: Monoon australe
- Popowia nitida King is a synonym of: Uvaria micrantha
- Poranthera microphylla
- Porospermum michieanum F.Muell. is a synonym of: Delarbrea michieana
- Portenschlagia australis (Vent.) Tratt. is a synonym of: Elaeodendron australe var. australe
- Portenschlagia integrifolia Tratt. is a synonym of: Elaeodendron australe var. integrifolium
- Portulaca pilosa
- Pothomorphe subpeltaa (Willd.) Miq. is a synonym of: Piper umbellatum
- Pothos amplifolia Zipp. ex Miq. is a synonym of: Epipremnum amplissimum
- Pothos aureus L. Linden & Andre is a synonym of: Epipremnum pinnatum cv. Aureum
- Pothos australasicus F.Muell. is a synonym of: Pothos longipes
- Pothos brassii
- Pothos brownii Domin is a synonym of: Pothos longipes
- Pothos longipes
- Pothos loureiri Hook. & Arn. is a synonym of: Pothos longipes
- Pothos pinnatus L. is a synonym of: Epipremnum pinnatum
- Pouteria asterocarpon (P.Royen) Jessup is a synonym of: Planchonella asterocarpon
- Pouteria brownlessiana (F.Muell.) Baehni is a synonym of: Pleioluma brownlessiana
- Pouteria castanosperma (C.T.White) Baehni is a synonym of: Vanroyena castanosperma
- Pouteria chartacea (Benth.) Baehni is a synonym of: Planchonella chartacea
- Pouteria cotinifolia (A.DC.) Baehni is a synonym of: Planchonella cotinifolia var. cotinifolia
- Pouteria cotinifolia var. pubescens (P.Royen) Jessup is a synonym of: Planchonella cotinifolia var. pubescens
- Pouteria dugulla (Bailey) Baehni is a synonym of: Planchonella euphlebia
- Pouteria euphlebia (F.Muell.) Baehni is a synonym of: Planchonella euphlebia
- Pouteria euphlebia (F.Muell.) Baehni var. euphlebia is a synonym of: Planchonella euphlebia
- Pouteria euphlebia var. cryptophlebia (C.T.White) Baehni is a synonym of: Planchonella euphlebia
- Pouteria euphlebia var. typica Baehni is a synonym of: Planchonella euphlebia
- Pouteria myrsinifolia (F.Muell.) Jessup is a synonym of: Planchonella myrsinifolia subsp. myrsinifolia
- Pouteria myrsinodendron (F.Muell) Jessup is a synonym of: Planchonella myrsinodendron
- Pouteria myrsinoides (Benth.) Baehni is a synonym of: Planchonella myrsinifolia subsp. myrsinifolia
- Pouteria obovata (R.Br.) Baehni is a synonym of: Planchonella obovata
- Pouteria obovoidea (H.J.Lam) Baehni is a synonym of: Planchonella myrsinodendron
- Pouteria obpyriformis (F.M.Bailey) Baehni is a synonym of: Sersalisia obpyriformis
- Pouteria papyracea (P.Royen) Baehni is a synonym of: Pleioluma papyracea
- Pouteria pearsoniorum Jessup is a synonym of: Pleioluma macrocarpa
- Pouteria pohlmaniana (F.Muell.) Baehni var. pohlmaniana is a synonym of: Planchonella pohlmaniana var. pohlmaniana
- Pouteria queenslandica (P.Royen) Jessup is a synonym of: Pleioluma queenslandica
- Pouteria richardii (F.Muell.) Baehni is a synonym of: Pleioluma laurifolia
- Pouteria sericea (Aiton) Baehni is a synonym of: Sersalisia sericea
- Pouteria singuliflora (C.T.White & W.D.Francis) Baehni is a synonym of: Pleioluma singuliflora
- Pouteria sp. Barong (M. Tucker 22) is a synonym of: Sersalisia obpyriformis
- Pouteria sp. Mt Lewis (BH 2475RFK) is a synonym of: Pleioluma ferruginea
- Pouteria sylvatica Baehni is a synonym of: Sersalisia sessiliflora
- Pouteria unmackiana (Bailey) Erlee is a synonym of: Sersalisia unmackiana
- Pouteria xerocarpa (F.Muell. ex Benth.) Baehni is a synonym of: Pleioluma xerocarpa
- Pouteria xylocarpa C.T.White is a synonym of: Planchonella xylocarpa
- Pouzolzia arnhemica F.Muell. is a synonym of: Pouzolzia zeylanica
- Pouzolzia indica (L.) Wight is a synonym of: Pouzolzia zeylanica
- Pouzolzia indica var. alienata (L.) Wedd. is a synonym of: Pouzolzia zeylanica
- Pouzolzia zeylanica
- Praxelis clematidea
- Premna acuminata
- Premna attenuata R.Br. is a synonym of: Premna serratifolia
- Premna benthamiana Domin is a synonym of: Premna odorata
- Premna cordata R.Br. is a synonym of: Premna acuminata
- Premna corymbosa Merr. is a synonym of: Premna serratifolia
- Premna dallachyana
- Premna dallachyana Benth. var. dallachyana is a synonym of: Premna dallachyana
- Premna dallachyana var. obtusisepala Domin is a synonym of: Premna dallachyana
- Premna dallachyana var. typica Domin is a synonym of: Premna dallachyana
- Premna glycycocca F.Muell. is a synonym of: Premna serratifolia
- Premna hylandiana
- Premna integrifolia L. is a synonym of: Premna serratifolia
- Premna integrifolia var. obtusifolia (R.Br.) Pei is a synonym of: Premna serratifolia
- Premna lignum-vitae (Schauer) Pieper is a synonym of: Vitex lignum-vitae
- Premna limbata
- Premna media R.Br. is a synonym of: Premna serratifolia
- Premna minor Domin is a synonym of: Premna dallachyana
- Premna obtusifolia R.Br. is a synonym of: Premna serratifolia
- Premna obtusifolia R.Br. var. obtusifolia is a synonym of: Premna serratifolia
- Premna obtusifolia var. gaudichaudii (Schauer) Moldenke is a synonym of: Premna serratifolia
- Premna obtusifolia var. velutina Benth. is a synonym of: Premna odorata
- Premna odorata
- Premna ovata R.Br. is a synonym of: Premna serratifolia
- Premna serratifolia
- Premna suavis Domin is a synonym of: Premna serratifolia
- Premna tateana F.M.Bailey is a synonym of: Premna dallachyana
- Premna tomentosa Willd. is a synonym of: Premna odorata
- Premna tracyana F.Muell. is a synonym of: Clerodendrum tracyanum
- Prenanthes japonica L. is a synonym of: Youngia japonica
- Procris pedunculata
- Proiphys amboinensis
- Proiphys infundibularis
- Prosorus indicus Dalzell is a synonym of: Margaritaria indica
- Protasparagus aethiopicus (L.) Oberm. is a synonym of: Asparagus aethiopicus
- Protium australasicum (Bailey) Sprague is a synonym of: Canarium australasicum
- Prumnopitys amara
- Prumnopitys ladei
- Prunus brachystachya
- Prunus grisea (C.Mueller) Kalkman var. grisea is a synonym of: Prunus brachystachya
- Prunus turneriana
- Pseudalangium polyosmoides F.Muell. is a synonym of: Alangium polyosmoides subsp. polyosmoides
- Pseudalangium polyosmoides F.Muell. is a synonym of: Alangium polyosmoides subsp. tomentosum
- Pseudalangium polyosmoides var. tomentosum F.Muell. is a synonym of: Alangium polyosmoides subsp. tomentosum
- Pseudalangium tomentosum F.Muell. is a synonym of: Alangium polyosmoides subsp. tomentosum
- Pseudatalaya multiflora (Benth.) Baill. is a synonym of: Atalaya multiflora
- Pseudelephantopus spicatus
- Pseuderanthemum variabile
- Pseudocarapa nitidula (Benth.) Merr. & L.M.Perry is a synonym of: Anthocarapa nitidula
- Pseudocarapa papuana Merr. & L.M.Perry is a synonym of: Dysoxylum papuanum
- Pseudomorus brunoniana (Endl.) Bureau is a synonym of: Streblus brunonianus
- Pseudomorus brunoniana (Endl.) Bureau var. brunoniana is a synonym of: Streblus brunonianus
- Pseudomorus brunoniana var. australiana Bureau is a synonym of: Streblus brunonianus
- Pseudomorus pendulina var. australiana Stearn is a synonym of: Streblus brunonianus
- Pseudovanilla foliata
- Pseudoweinmannia apetala
- Pseuduvaria froggattii
- Pseuduvaria glabrescens (Jessup) Y.C.F.Su & R.M.K.Saunders is a synonym of: Pseuduvaria mulgraveana var. glabrescens
- Pseuduvaria hylandii
- Pseuduvaria mulgraveana Jessup is a synonym of: Pseuduvaria mulgraveana var. mulgraveana
- Pseuduvaria mulgraveana var. mulgraveana
- Pseuduvaria mulgraveana var. glabrescens
- Pseuduvaria villosa
- Psidium cattleianum orth. var. Sabine is a synonym of: Quassia amara
- Psidium cattleyanum
- Psidium guajava
- Psilanthus brassii (J.-F.Leroy) A.P.Davis is a synonym of: Coffea brassii
- Psychanthus racemigera (F.Muell.) R.M.Smith is a synonym of: Pleuranthodium racemigerum
- Psychotria coelosperma
- Psychotria dallachiana
- Psychotria daphnoides var. angustifolia
- Psychotria fitzalanii
- Psychotria hebecarpa
- Psychotria loniceroides DC. var. loniceroides is a synonym of: Psychotria loniceroides
- Psychotria loniceroides
- Psychotria loniceroides var. typica Domin is a synonym of: Psychotria loniceroides
- Psychotria nematopoda F.Muell. is a synonym of: Amaracarpus nematopodus
- Psychotria nesophila
- Psychotria poliostemma
- Psychotria sp. Danbulla (S.T.Blake 15262)
- Psychotria sp. Mt Lewis (V.K.Moriarty 2445)
- Psychotria sp. Pajinka (W.Cooper WWC1435) is a synonym of: Psychotria hebecarpa
- Psychotria sp. Pinnacle Rock (B.Gray 6555)
- Psychotria sp. Shute Harbour (L.J.Webb 7916)
- Psychotria sp. Utchee Creek (H.Flecker NGNC5313)
- Psychotria submontana
- Psydrax attenuata
- Psydrax banksii
- Psydrax graciliflora
- Psydrax johnsonii
- Psydrax lamprophylla f. latissima
- Psydrax laxiflorens
- Psydrax montigena
- Psydrax odorata (G.Forst.) A.C.Sm. & S.P.Darwin is a synonym of: Psydrax odorata f. foveolata
- Psydrax odorata f. australiana
- Psydrax odorata f. foveolata
- Psydrax odorata f. subnitida
- Psydrax odorata subsp. arnhemica
- Psydrax tropica
- Ptelea arborea Blanco is a synonym of: Harpullia arborea
- Pternandra coerulescens
- Pternandra cyanea (Blume) Triana is a synonym of: Pternandra coerulescens
- Pterocarpus australis Endl. is a synonym of: Austrocallerya australis
- Pterocarpus sp. Archer River (B.Hyland 3078RFK) is a synonym of: Crudia abbreviata
- Pterocoellion javanicum Turcz. is a synonym of: Berrya javanica
- Pterolobium nitens F.Muell. ex Benth. is a synonym of: Mezoneuron nitens
- Ptychosperma alexandrae F.Muell. is a synonym of: Archontophoenix alexandrae
- Ptychosperma bleeseri Burret is a synonym of: Ptychosperma macarthurii
- Ptychosperma capitis-yorkii H.Wendl. & Drude is a synonym of: Ptychosperma elegans
- Ptychosperma cunninghamiana H.Wendl. is a synonym of: Archontophoenix cunninghamiana
- Ptychosperma elegans
- Ptychosperma elegans (R.Br.) Blume var. elegans is a synonym of: Ptychosperma elegans
- Ptychosperma elegans var. sphaerocarpum Becc. is a synonym of: Ptychosperma elegans
- Ptychosperma jardinei (Bailey) F.M.Bailey is a synonym of: Ptychosperma elegans
- Ptychosperma julianettii Becc. ex Martelli is a synonym of: Ptychosperma macarthurii
- Ptychosperma macarthurii
- Ptychosperma normanbyi (W.Hill) F.Muell. is a synonym of: Normanbya normanbyi
- Ptychosperma seaforthia Miq. is a synonym of: Ptychosperma elegans
- Ptychosperma wendlandiana Burret is a synonym of: Ptychosperma elegans
- Ptychosperma wendlandiana Burret var. wendlandiana is a synonym of: Ptychosperma elegans
- Ptychosperma wendlandiana var. sphaerocarpum (Becc.) Burret is a synonym of: Ptychosperma elegans
- Pueraria lobata
- Pueraria lobata (Willd.) Ohwi var. lobata is a synonym of: Pueraria lobata
- Pueraria montana var. lobata (Willd.) Maesen & S.M.Almeida ex Sanjappa & Predeep is a synonym of: Pueraria lobata
- Pueraria phaseoloides
- Pulassarium ilicifolium (F.Muell.) Kuntze is a synonym of: Alyxia ilicifolia
- Pulassarium obtusifolium (R.Br.) Kuntze is a synonym of: Alyxia stellata
- Pulassarium spicatum (R.Br.) Kuntze is a synonym of: Alyxia spicata
- Pulassarium stellatum (J.R.Forst. & G.Forst.) Kuntze is a synonym of: Alyxia stellata
- Pulassarium thyrsiflorum (Benth.) Kuntze is a synonym of: Alyxia spicata
- Pullea stutzeri
- Pupalia micrantha
- Pycnarrhena australiana F.Muell. is a synonym of: Pycnarrhena novoguineensis
- Pycnarrhena novoguineensis
- Pycnarrhena ozantha
- Pycnarrhena sayeri Diels is a synonym of: Pycnarrhena novoguineensis
- Pygeum griseum C.Mueller is a synonym of: Prunus brachystachya
- Pygeum turnerianum F.M.Bailey is a synonym of: Prunus turneriana
- Pynarrhena papuana Kanehira & Hatusima is a synonym of: Pycnarrhena ozantha
Q
- Quamoclit pinnata Bojer is a synonym of: Ipomoea quamoclit
- Quamoclit vulgaris Choisy is a synonym of: Ipomoea quamoclit
- Quassia amara
- Quassia baileyana (Oliv.) Noot. is a synonym of: Samadera baileyana
- Quassia bidwillii (Hook.f.) Noot. is a synonym of: Samadera bidwillii
- Quassia sp. Barong (B.Gray 742) is a synonym of: Samadera sp. Barong (B.Gray 742)
- Quassia sp. Tozer Range (L.J.Brass 19393) is a synonym of: Samadera sp. Tozer Range (L.J.Brass 19393)
- Queenslandiella hyalina (Vahl) F.Ballard is a synonym of: Cyperus hyalinus
- Quintinia fawkneri
- Quintinia quatrefagesii
- Quisqualis indica
R
- Racosperma aulacocarpum (Benth.) Pedley is a synonym of: Acacia aulacocarpa
- Racosperma auriculiforme (Benth.) Pedley is a synonym of: Acacia auriculiformis
- Racosperma cincinnatum (F.Muell.) Pedley is a synonym of: Acacia cincinnata
- Racosperma crassicarpum (Benth.) Pedley is a synonym of: Acacia crassicarpa
- Racosperma fasciculiferum (Benth.) Pedley is a synonym of: Acacia fasciculifera
- Racosperma flavescens (Benth.) Pedley is a synonym of: Acacia flavescens
- Racosperma fleckeri (Pedley) Pedley is a synonym of: Acacia fleckeri
- Racosperma harpophyllum (Benth.) Pedley is a synonym of: Acacia harpophylla
- Racosperma holosericeum (G.Don) Pedley is a synonym of: Acacia holosericea
- Racosperma hylonomum (Pedley) Pedley is a synonym of: Acacia hylonoma
- Racosperma leptocarpum (Benth.) Pedley is a synonym of: Acacia leptocarpa
- Racosperma maidenii (F.Muell.) Pedley is a synonym of: Acacia maidenii
- Racosperma mangium (Willd.) Pedley is a synonym of: Acacia mangium
- Racosperma melanoxylon (R.Br.) Pedley is a synonym of: Acacia melanoxylon
- Racosperma orarium (F.Muell.) Pedley is a synonym of: Acacia oraria
- Racosperma polystachyum (Benth.) Pedley is a synonym of: Acacia polystachya
- Racosperma shirleyi (Maiden) Pedley is a synonym of: Acacia shirleyi
- Racosperma spirorbe subsp. solandri (Benth.) Pedley is a synonym of: Acacia spirorbis subsp. solandri
- Racosperma ulicifolium (Salisb.) Pedley is a synonym of: Acacia ulicifolia
- Ramosia phillippinensis Merr. is a synonym of: Centotheca philippinensis
- Randia audasii
- Randia cochinchinensis (Lour.) Merr. is a synonym of: Aidia racemosa
- Randia densiflora (DC.) Benth. is a synonym of: Aidia racemosa
- Randia disperma S. Moore is a synonym of: Crispiloba disperma
- Randia fitzalanii (F.Muell.) Benth. is a synonym of: Atractocarpus fitzalanii subsp. fitzalanii
- Randia hirta (F.Muell.) F.Muell. is a synonym of: Atractocarpus hirtus
- Randia lamprophylla O.Schwarz is a synonym of: Aidia racemosa
- Randia sessilis F.Muell. is a synonym of: Atractocarpus sessilis
- Randia sp. (Coen B.P. Hyland 14378) is a synonym of: Coffea brassii
- Randia sp. (Coen BH 14378) is a synonym of: Coffea brassii
- Randia sp. Boonjee (BG 5345) is a synonym of: Coelospermum purpureum
- Randia sp. Peninsula (G.Stocker 1321)
- Randia spinuligera F.Muell. is a synonym of: Randia tuberculosa
- Randia tuberculosa
- Randia wallichii Hook.f. is a synonym of: Tarennoidea wallichii
- Rapanea achradifolia (F.Muell.) Mez is a synonym of: Myrsine achradifolia
- Rapanea benthamiana Mez is a synonym of: Myrsine benthamiana
- Rapanea campanulata (F. Muell.) Mez is a synonym of: Myrsine variabilis
- Rapanea porosa (F.Muell.) Mez is a synonym of: Myrsine porosa
- Rapanea porosa (F.Muell.) Mez var. porosa is a synonym of: Myrsine porosa
- Rapanea porosa var. magnifolia Domin is a synonym of: Myrsine porosa
- Rapanea sp. (Atherton K.J. White AQ91778) is a synonym of: Myrsine smithii
- Rapanea sp. (Bloomfield V. Scarth-Johnson 223A) is a synonym of: Myrsine urceolata
- Rapanea sp. (Clifton Beach R.L. Jago 4080) is a synonym of: Myrsine variabilis
- Rapanea sp. (Emerald JOF 131) is a synonym of: Myrsine smithii
- Rapanea sp. (Kimberley KFK 10514) is a synonym of: Myrsine kimberleyensis
- Rapanea sp. (Ravenshoe CAIRNS 5524) is a synonym of: Myrsine maculata
- Rapanea sp. (Ravenshoe H. Flecker NQNC 5524) is a synonym of: Myrsine maculata
- Rapanea sp. (Roaring Meg Creek L.W. Jessup 682) is a synonym of: Myrsine rubiginosa
- Rapanea sp. (Shipton BH 12523) is a synonym of: Myrsine rubiginosa
- Rapanea sp. (Zarda BH 6898) is a synonym of: Myrsine ireneae subsp. ireneae
- Rapanea sp. (Zarda LA B.P. Hyland 6898) is a synonym of: Myrsine ireneae subsp. ireneae
- Rapanea subsessilis (F.Muell.) Mez is a synonym of: Myrsine subsessilis subsp. cryptostemon
- Rapanea subsessilis subsp. (Gordonvale S.T. Blake 9734) is a synonym of: Myrsine subsessilis subsp. cryptostemon
- Rapanea urceolata (R.Br.) Mez is a synonym of: Myrsine urceolata
- Rapanea variabilis (R.Br.) Mez is a synonym of: Myrsine variabilis
- Ratonia alphandi F.Muell. is a synonym of: Castanospora alphandii
- Ratonia anodonta (F.Muell.) Benth. is a synonym of: Mischocarpus anodontus
- Ratonia cordieri (F.Muell.) F.M.Bailey is a synonym of: Synima cordierorum
- Ratonia cordieri F.Muell. ex F.M.Bailey is a synonym of: Synima cordierorum
- Ratonia daemeliana (F.Muell.) F.M.Bailey is a synonym of: Toechima daemelianum
- Ratonia exangulata F.Muell. is a synonym of: Mischocarpus exangulatus
- Ratonia grandissima F.Muell. is a synonym of: Mischocarpus grandissimus
- Ratonia lachnocarpa F.Muell. is a synonym of: Mischocarpus lachnocarpus
- Ratonia lessertiana (Cambess.) Benth. & Hook.f. is a synonym of: Mischocarpus exangulatus
- Ratonia martyana (F.Muell.) F.M.Bailey is a synonym of: Sarcopteryx martyana
- Ratonia nugentii F.M.Bailey is a synonym of: Toechima erythrocarpum
- Ratonia oshanesiana (F.Muell.) F.M.Bailey is a synonym of: Arytera divaricata
- Ratonia pyriformis (F.Muell.) Benth. is a synonym of: Mischocarpus pyriformis subsp. pyriformis
- Rauwenhoffia leichhardtii (F.Muell.) Diels is a synonym of: Uvaria leichhardtii
- Reichardia decapetala Roth is a synonym of: Biancaea decapetala
- Remusatia vivipara
- Restiaria cordata Lour. is a synonym of: Uncaria cordata var. cordata
- Rhagodia hastata R.Br. is a synonym of: Einadia hastata
- Rhamnella vitiensis
- Rhamnus incana Roxb. is a synonym of: Alphitonia oblata
- Rhamnus napalensis
- Rhamnus oenopolia L. is a synonym of: Ziziphus oenopolia
- Rhamnus vitiensis Benth. is a synonym of: Rhamnella vitiensis
- Rhaphidophora amplissimia Schott is a synonym of: Epipremnum amplissimum
- Rhaphidophora aurea (L. Linden & Andre) Birdsey is a synonym of: Epipremnum pinnatum cv. Aureum
- Rhaphidophora australasica
- Rhaphidophora cunninghamii Schott is a synonym of: Epipremnum pinnatum
- Rhaphidophora hayi
- Rhaphidophora laciniata (Burm. f.) Merr. is a synonym of: Epipremnum pinnatum
- Rhaphidophora lovellae F.M.Bailey is a synonym of: Epipremnum pinnatum
- Rhaphidophora pachyphylla K.Krause is a synonym of: Rhaphidophora hayi
- Rhaphidophora pertusa var.vitiensis (Schott)Engl. is a synonym of: Epipremnum pinnatum
- Rhaphidophora petrieana
- Rhaphidophora pinnata (L.) Schott. is a synonym of: Epipremnum pinnatum
- Rhaphidophora pinnata (Schott) Schott is a synonym of: Epipremnum pinnatum
- Rhaphidophora vitiensis Schott is a synonym of: Epipremnum pinnatum
- Rhaphidospora cavernarum
- Rhaphidospora platyphylla
- Rhetinosperma longistipitatum Radlk. is a synonym of: Chisocheton longistipitatus
- Rhodamnia acuminata
- Rhodamnia arenaria
- Rhodamnia australis
- Rhodamnia blairiana
- Rhodamnia blairiana F.Muell. var. blairiana is a synonym of: Rhodamnia blairiana
- Rhodamnia costata
- Rhodamnia fordii
- Rhodamnia glabrescens
- Rhodamnia hylandii
- Rhodamnia longisepala
- Rhodamnia pauciovulata
- Rhodamnia sessiliflora
- Rhodamnia sharpeana
- Rhodamnia sp. (Silver Plains BH 2866RFK) is a synonym of: Rhodamnia hylandii
- Rhodamnia sp. Cape York (LSS 12538) is a synonym of: Rhodamnia fordii
- Rhodamnia sp. McIlwraith Range (LJW 9527) is a synonym of: Rhodamnia sharpeana
- Rhodamnia sp. Silver Plains (B.Hyland 2866RFK) is a synonym of: Rhodamnia fordii
- Rhodamnia sp. Windsor Tableland (A.Ford 2392) is a synonym of: Rhodamnia longisepala
- Rhodamnia spongiosa
- Rhodamnia trinervia var. macrophylla (Domin) C.T.White is a synonym of: Rhodomyrtus pervagata
- Rhodamnia trinervia var. spongiosa F.M.Bailey is a synonym of: Rhodamnia spongiosa
- Rhododendron lochiae
- Rhododendron notiale Craven is a synonym of: Rhododendron lochiae
- Rhododendron viriosum
- Rhodomyrtus beckleri (F.Muell.) L.S.Sm. is a synonym of: Archirhodomyrtus beckleri
- Rhodomyrtus canescens
- Rhodomyrtus cymiflora (F.Muell.) Benth. is a synonym of: Archirhodomyrtus beckleri
- Rhodomyrtus effusa
- Rhodomyrtus macrocarpa
- Rhodomyrtus pervagata
- Rhodomyrtus recurva C.T.White is a synonym of: Pilidiostigma papuanum
- Rhodomyrtus sericea
- Rhodomyrtus trineura (F.Muell.) Benth. is a synonym of: Rhodomyrtus trineura subsp. trineura
- Rhodomyrtus trineura subsp. trineura
- Rhodomyrtus trineura (F.Muell.) Benth. var. trineura is a synonym of: Rhodomyrtus trineura subsp. trineura
- Rhodomyrtus trineura subsp. capensis
- Rhodomyrtus trineura var. canescens A.J.Scott is a synonym of: Rhodomyrtus canescens
- Rhodomyrtus trineura var. macrophylla Domin is a synonym of: Rhodomyrtus pervagata
- Rhus cobbe L. is a synonym of: Allophylus cobbe
- Rhus euroschinus F.Muell. is a synonym of: Euroschinus falcatus var. falcatus
- Rhus javanica L. is a synonym of: Brucea javanica
- Rhus panaciformis F.Muell. is a synonym of: Rhus taitensis
- Rhus retusa Engl. is a synonym of: Rhus taitensis
- Rhus rufa Teijsm. & Binn. is a synonym of: Rhus taitensis
- Rhus simarubaefolia var. taitensis (Guillemin) Engl. is a synonym of: Rhus taitensis
- Rhus taitensis
- Rhynchosia acuminatissima
- Rhynchosia acutifolia F.Muell. ex Benth. is a synonym of: Cajanus acutifolius
- Rhynchosia cunninghamii Benth. is a synonym of: Rhynchosia acuminatissima
- Rhynchosia minima
- Rhynchospora corymbosa
- Rhynchospora leae
- Rhysotoechia bifoliolata subsp. nitida
- Rhysotoechia contermina Domin is a synonym of: Rhysotoechia robertsonii
- Rhysotoechia flavescens
- Rhysotoechia florulenta
- Rhysotoechia mortoniana
- Rhysotoechia robertsonii
- Rhytidandra polyosmoides (F.Muell.) F.Muell. is a synonym of: Alangium polyosmoides subsp. polyosmoides
- Rhytileucoma chilocarpoides F.Muell. is a synonym of: Melodinus australis
- Ribesiodes australianum (F.Muell.) Kuntze is a synonym of: Embelia australiana
- Richardella unmackiana (Bailey) Baehni is a synonym of: Sersalisia unmackiana
- Richardia brasiliensis
- Ricinocarpos ledifolius
- Ricinus communis
- Ricinus tanarius L. is a synonym of: Macaranga tanarius
- Rinorea australasica C.T.White is a synonym of: Rinorea bengalensis
- Rinorea bengalensis
- Rinorea bengalensis Kuntze f. bengalensis is a synonym of: Rinorea bengalensis
- Ripogonum album non R.Br. is a synonym of: Smilax glyciphylla
- Ripogonum album
- Ripogonum album R.Br. var. album is a synonym of: Ripogonum album
- Ripogonum album var. leptostachya Benth. is a synonym of: Ripogonum album
- Ripogonum brevifolium
- Ripogonum danesii Domin is a synonym of: Ripogonum album
- Ripogonum discolor
- Ripogonum elseyanum
- Ripogonum mooreanum F.Muell. is a synonym of: Ripogonum album
- Ripogonum papuanum C.T.White is a synonym of: Ripogonum album
- Ristantia gouldii
- Ristantia pachysperma
- Ristantia waterhousei
- Rivina glabra L. is a synonym of: Rivina humilis
- Rivina humilis
- Rivina humilis var. glabra (L.) H.Walter is a synonym of: Rivina humilis
- Rivina laevis L. is a synonym of: Rivina humilis
- Robinia mitis L. is a synonym of: Pongamia pinnata var. pinnata
- Rockinghamia angustifolia
- Rockinghamia brevipes
- Roettlera kinnearii (F.Muell.) F.Muell. is a synonym of: Boea kinnearii
- Romnalda grallata
- Romnalda ophiopogonoides
- Romnalda sp. Roaring Meg (P.I.Forster 4402) is a synonym of: Romnalda ophiopogonoides
- Rondeletia repens L. is a synonym of: Geophila repens
- Rostellularia adscendens
- Rostellularia adscendens var. latifolia
- Rostellularia adscendens var. pogonanthera (F.Muell.) R.M.Barker is a synonym of: Rostellularia adscendens
- Rostellularia juncea (R.Br.) Nees is a synonym of: Rostellularia adscendens
- Rostellularia media (R.Br.) Nees is a synonym of: Rostellularia adscendens
- Rostellularia pogonanthera F.Muell. is a synonym of: Rostellularia adscendens
- Rostellularia procumbens (L.) Nees is a synonym of: Rostellularia adscendens
- Roupala bleasdalei (F.Muell.) F.Muell. is a synonym of: Bleasdalea bleasdalei
- Rourea brachyandra
- Rourea minus (Gaertn.) Leenh. is a synonym of: Rourea brachyandra
- Roxburghia javanica var. australiana Benth. is a synonym of: Stemona australiana
- Rubiaceae Gen. Nov. sp. Boonjee (LJW+ 6837A) is a synonym of: Gynochthodes retropila
- Rubiaceae sp. (Sessile Fruits BG 20203V) is a synonym of: Gynochthodes sessilis
- Rubus alceifolius
- Rubus haskarlii subsp. dendrocharis Focke is a synonym of: Rubus moluccanus var. moluccanus
- Rubus moluccanus var. moluccanus
- Rubus moluccanus var. dendrocharis (Focke) P.Royen is a synonym of: Rubus moluccanus var. moluccanus
- Rubus moluccanus var. trilobus
- Rubus muelleri F.M.Bailey is a synonym of: Rubus probus
- Rubus parvifolius
- Rubus probus
- Rubus queenslandicus
- Ruellia alternata Burm. f. is a synonym of: Hemigraphis alternata
- Ruellia tuberosa
- Ryparosa kurrangii
- Ryssopterys australiensis Nied. is a synonym of: Stigmaphyllon australiense
- Ryssopterys timoriensis (DC.) Blume ex A.Juss. is a synonym of: Stigmaphyllon timoriense
- Ryticaryum longifolium
S
- Saccopetalum bidwillii Benth. is a synonym of: Meiogyne bidwillii
- Saccopetalum bidwillii Benth. is a synonym of: Meiogyne heteropetala
- Saccopetalum brahei F.Muell. is a synonym of: Miliusa brahei
- Saccopetalum horsfieldii Bennett is a synonym of: Miliusa horsfieldii
- Sageretia hamosa
- Saguaster normanbyi (W.Hill) Kuntze is a synonym of: Normanbya normanbyi
- Saguerus australasicus H.Wendl. & Drude is a synonym of: Arenga australasica
- Salacia chinensis
- Salacia disepala
- Salacia erythrocarpa
- Salacia prinoides (Willd.) DC. is a synonym of: Salacia chinensis
- Salacicratea disepala C.T.White is a synonym of: Salacia disepala
- Salvia plebeia
- Salvia reflexa
- Samadera baileyana
- Samadera bidwillii
- Samadera sp. Barong (B.Gray 742)
- Samadera sp. Tozer Range (L.J.Brass 19393)
- Samanea saman
- Samara australiana (F.Muell.) F.Muell. is a synonym of: Embelia australiana
- Sambucus australasica
- Sambucus canadensis
- Sambucus xanthocarpa F.Muell. is a synonym of: Sambucus australasica
- Sanchezia parvibracteata
- Sankowskya stipularis
- Sansevieria cannifolia (R.Br.) Spreng. is a synonym of: Cordyline cannifolia
- Santaloides brachyandrum Schellenb. is a synonym of: Rourea brachyandra
- Santalum lanceolatum
- Santalum lanceolatum R.Br. var. lanceolatum is a synonym of: Santalum lanceolatum
- Santalum Lanceolatum var. angustifolium Benth. is a synonym of: Santalum lanceolatum
- Santalum lanceolatum var. oblongatum (R.Br.) Domin is a synonym of: Santalum lanceolatum
- Santalum lanceolatum var. typicum Domin is a synonym of: Santalum lanceolatum
- Santalum lanceolatum var. venosum (R.Br.) F.M.Bailey is a synonym of: Santalum lanceolatum
- Santalum lanceolatum var. venosum F.M.Bailey is a synonym of: Santalum lanceolatum
- Santalum leptocladum Gand. is a synonym of: Santalum lanceolatum
- Santalum megacarpum Gand. is a synonym of: Santalum lanceolatum
- Santalum oblongatum R.Br. is a synonym of: Santalum lanceolatum
- Santalum venosum R.Br. is a synonym of: Santalum lanceolatum
- Sapindaceae sp. (Noah Creek BG 6026) is a synonym of: Mischarytera megaphylla
- Sapindus australis Benth. is a synonym of: Atalaya australiana
- Sapindus rubiginosus Roxb. is a synonym of: Lepisanthes rubiginosa
- Sapindus salicifolia A.DC. is a synonym of: Atalaya salicifolia
- Sapindus senegalensis Juss. ex Poir. is a synonym of: Lepisanthes senegalensis
- Sapindus serratus Roxb. is a synonym of: Jagera madida
- Sapota myrsinoides (Benth.) Radlk. ex Holle is a synonym of: Planchonella myrsinifolia subsp. myrsinifolia
- Sapota obovata (R.Br.) Radlk. ex Holle is a synonym of: Planchonella obovata
- Sapota pohlmaniana (F.Muell.) Holle is a synonym of: Planchonella pohlmaniana var. pohlmaniana
- Sarcocephalus cadamba (Roxb.) Kurz is a synonym of: Neolamarckia cadamba
- Sarcolobus hullsii
- Sarcolobus vittatus
- Sarcomelicope simplicifolia (Endl.) T.G.Hartley is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Sarcomelicope simplicifolia subsp. simplicifolia
- Sarcopetalum harveyanum
- Sarcopteryx acuminata
- Sarcopteryx martyana
- Sarcopteryx montana
- Sarcopteryx reticulata
- Sarcopteryx sp. McIlwraith Range (B.Hyland 3261RFK)
- Sarcostemma brunonianum Wight & Arn. is a synonym of: Cynanchum viminale subsp. brunonianum
- Sarcostemma viminale subsp. brunonianum (Wight & Arn.) P.I.Forst. is a synonym of: Cynanchum viminale subsp. brunonianum
- Sarcotoechia cuneata
- Sarcotoechia heterophylla
- Sarcotoechia lanceolata
- Sarcotoechia protracta
- Sarcotoechia serrata
- Sarcotoechia sp. Mountain Sarcotoechia (WWC 100) is a synonym of: Synima reynoldsiae
- Sarcotoechia villosa
- Saurauia andreana
- Sauropus albiflorus (Mull.Arg.) Airy Shaw is a synonym of: Synostemon albiflorus
- Sauropus albiflorus (Mull.Arg.) Airy Shaw subsp. albiflorus is a synonym of: Synostemon albiflorus
- Sauropus convallarioides J.T.Hunter & J.J.Bruhl is a synonym of: Synostemon sphenophyllus
- Sauropus macranthus Hassk. is a synonym of: Breynia macrantha
- Sauropus spectabilis Miq. is a synonym of: Breynia macrantha
- Sauropus sphenophyllus (Airy Shaw) Airy Shaw is a synonym of: Synostemon sphenophyllus
- Scaevola enantophylla
- Scaevola enantophylla var. scandens (Bailey) Ewart is a synonym of: Scaevola enantophylla
- Scaevola frutescens K.Krause is a synonym of: Scaevola taccada
- Scaevola frutescens var. koenigii (M.Vahl) Domin is a synonym of: Scaevola taccada
- Scaevola koenigii Vahl is a synonym of: Scaevola taccada
- Scaevola lobelia de Vriese is a synonym of: Scaevola taccada
- Scaevola oppositifolia Roxb. is a synonym of: Scaevola enantophylla
- Scaevola scandens F.M.Bailey is a synonym of: Scaevola enantophylla
- Scaevola sericea Vahl is a synonym of: Scaevola taccada
- Scaevola taccada
- Schefflera actinophylla
- Schefflera bractescens
- Schefflera elliptica
- Schefflera versteegii Harms is a synonym of: Schefflera bractescens
- Schelhammera multiflora
- Schelhammera pedunculata F.Muell. is a synonym of: Kuntheria pedunculata
- Schinus terebinthifolius
- Schistocarpaea johnsonii
- Schizomeria ovata
- Schizomeria whitei
- Schmidelia anodonta F.Muell. is a synonym of: Mischocarpus anodontus
- Schmidelia pyriformis F.Muell. is a synonym of: Mischocarpus pyriformis subsp. pyriformis
- Schmidelia serrata (Roxb.) DC. is a synonym of: Allophylus cobbe
- Schoenus nemorum Vahl. is a synonym of: Hypolytrum nemorum
- Schoutenia ovata
- Sciadophyllum ellipticum Blume is a synonym of: Schefflera elliptica
- Sciaphila arfakiana
- Sciaphila australasica Hemsl. is a synonym of: Sciaphila arfakiana
- Sciaphila tenella
- Scindapsus altissimus
- Scindapsus aureus (L. Linden & Andre) Engl. is a synonym of: Epipremnum pinnatum cv. Aureum
- Scindapsus pinnatus Schott is a synonym of: Epipremnum pinnatum
- Scirpodendron ghaeri
- Scirpus barbatus Rottb. is a synonym of: Bulbostylis barbata
- Scirpus ciliaris L. is a synonym of: Fuirena ciliaris
- Scirpus corymbosus L. is a synonym of: Rhynchospora corymbosa
- Scirpus dichotomus L. is a synonym of: Fimbristylis dichotoma
- Scirpus humillimus Benth. is a synonym of: Isolepis humillima
- Scirpus lithospermus L. is a synonym of: Scleria lithosperma var. lithosperma
- Scleria brownii
- Scleria ciliaris
- Scleria levis
- Scleria lingulata
- Scleria lithosperma (L.) Sw. is a synonym of: Scleria lithosperma var. lithosperma
- Scleria lithosperma var. lithosperma
- Scleria lithosperma var. linearis
- Scleria novae-hollandiae
- Scleria polycarpa
- Scleria rugosa
- Scleria sp. A Kimberley Flora is a synonym of: Scleria lingulata
- Scleria sphacelata
- Scleria sumatrensis
- Scleria terrestris
- Sclerostylis trifoliata Bl. is a synonym of: Glycosmis trifoliata
- Scolopia braunii
- Scolopia brownii F.Muell. is a synonym of: Scolopia braunii
- Scoparia dulcis
- Scoparia dulcis L. var. dulcis is a synonym of: Scoparia dulcis
- Scoparia dulcis var. typica Domin is a synonym of: Scoparia dulcis
- Scrotochloa tararaensis
- Scrotochloa urceolata
- Seaforthia elegans R.Br. is a synonym of: Ptychosperma elegans
- Sebastiania chamaelea (L.) Mull.Arg. is a synonym of: Microstachys chamaelea
- Sebifera glutinosa Lour. is a synonym of: Litsea glutinosa
- Secamone elliptica
- Secamone elliptica R.Br. subsp. elliptica is a synonym of: Secamone elliptica
- Secamone lineata
- Secamone ovata R.Br. is a synonym of: Secamone elliptica
- Secamone timorensis
- Securinega leucopyrus (Willd.) Mull.Arg. is a synonym of: Flueggea leucopyrus
- Securinega melanthesoides (F.Muell.) Airy Shaw var. melanthesoides is a synonym of: Flueggea virosa subsp. melanthesoides
- Securinega obovata (Willd.) Mull.Arg. is a synonym of: Flueggea virosa subsp. melanthesoides
- Securinega virosa var. australiana Baill. is a synonym of: Flueggea leucopyrus
- Selwynia laurina F.Muell. is a synonym of: Hypserpa laurina
- Semecarpus anacardium var. parvifolia Benth. is a synonym of: Semecarpus australiensis
- Semecarpus australiensis
- Semecarpus australiensis Engl. var. australiensis is a synonym of: Semecarpus australiensis
- Semecarpus australiensis var. macrophyllus Domin is a synonym of: Semecarpus australiensis
- Semecarpus australiensis var. obtusifolius Domin is a synonym of: Semecarpus australiensis
- Senecio bipinnatisectus
- Senecio tamoides
- Senecio valerianifolius Link ex Spreng. is a synonym of: Erechtites valerianifolius f. valerianifolius
- Senegalia albizioides
- Senegalia pennata subsp. kerrii
- Senegalia sp. Bamaga is a synonym of: Senegalia pennata subsp. kerrii
- Senna clavigera
- Senna coronilloides
- Senna floribunda (Cav.) H.S.Irwin & Barneby is a synonym of: Senna septemtrionalis
- Senna gaudichaudii
- Senna hirsuta
- Senna obtusifolia
- Senna occidentalis
- Senna pendula var. glabrata
- Senna septemtrionalis
- Senna siamea
- Senna sophera
- Senna surattensis
- Senna timoriensis
- Senna tora
- Sersalisia antiloga (F.Muell.) Domin is a synonym of: Amorphospermum antilogum
- Sersalisia brachyloba Domin is a synonym of: Pleioluma brownlessiana
- Sersalisia brownlessiana (F.Muell.) Domin is a synonym of: Pleioluma brownlessiana
- Sersalisia chartacea (Benth.) Domin is a synonym of: Planchonella chartacea
- Sersalisia cotinifolia (A.DC.) F.Muell. is a synonym of: Planchonella cotinifolia var. cotinifolia
- Sersalisia dugulla (Bailey) Domin is a synonym of: Planchonella euphlebia
- Sersalisia euphlebia (F.Muell.) Domin is a synonym of: Planchonella euphlebia
- Sersalisia galactoxylon (F.Muell.) Benth. is a synonym of: Palaquium galactoxylon
- Sersalisia laurifolia A.Rich. is a synonym of: Pleioluma laurifolia
- Sersalisia myrsinifolia F.Muell. is a synonym of: Planchonella myrsinifolia subsp. myrsinifolia
- Sersalisia myrsinoides (Benth.) Domin is a synonym of: Planchonella myrsinifolia subsp. myrsinifolia
- Sersalisia obovata R.Br. is a synonym of: Planchonella obovata
- Sersalisia obpyriformis
- Sersalisia pohlmaniana (F.Muell.) Domin is a synonym of: Planchonella pohlmaniana var. pohlmaniana
- Sersalisia sericea
- Sersalisia sessiliflora
- Sersalisia unmackiana
- Sersalisia xerocarpa (Benth.) Domin is a synonym of: Pleioluma xerocarpa
- Sesbania australis F.Muell. is a synonym of: Sesbania cannabina
- Sesbania cannabina
- Sesbania formosa
- Sesbania grandiflora Poir. is a synonym of: Sesbania formosa
- Setaria apiculata
- Setaria oplismenoides
- Setaria palmifolia
- Shonia tristigma subsp. borealis
- Sicyos angulatus L. is a synonym of: Sicyos australis
- Sicyos australis
- Sicyos fretensis Hook.f. is a synonym of: Sicyos australis
- Sicyos undara
- Sida acuta
- Sida atherophora
- Sida atherophora Domin var. atherophora is a synonym of: Sida atherophora
- Sida aurita Wall. ex Link is a synonym of: Abutilon auritum
- Sida calycina Cav. is a synonym of: Pavonia calycina
- Sida cordifolia
- Sida hackettiana
- Sida oxycarpa F.Muell. is a synonym of: Abutilon oxycarpum
- Sida rhombifolia
- Sida rhombifolia L. subsp. rhombifolia is a synonym of: Sida rhombifolia
- Sida rohlenae Domin is a synonym of: Sida rohlenae subsp. rohlenae
- Sida rohlenae subsp. rohlenae
- Sida sp. Small Flower (B.Gray 5657)
- Sida spinosa
- Sida subspicata Benth. is a synonym of: Sida hackettiana
- Sida subspicata Benth. f. subspicata is a synonym of: Sida hackettiana
- Sideroxylon argenteum Thunb. is a synonym of: Planchonella obovata
- Sideroxylon brownii F.Muell. is a synonym of: Planchonella obovata
- Sideroxylon brownlessiana (F.Muell.) F.Muell. is a synonym of: Pleioluma brownlessiana
- Sideroxylon chartaceum (Benth.) F.Muell. is a synonym of: Planchonella chartacea
- Sideroxylon cotinifolium (A.DC.) Eichler is a synonym of: Planchonella cotinifolia var. cotinifolia
- Sideroxylon dugulla F.M.Bailey is a synonym of: Planchonella euphlebia
- Sideroxylon euphlebium (F.Muell.) F.Muell. is a synonym of: Planchonella euphlebia
- Sideroxylon euphlebium (F.Muell.) F.Muell. var. euphlebium is a synonym of: Planchonella euphlebia
- Sideroxylon euphlebium var. cryptophlebium C.T.White is a synonym of: Planchonella euphlebia
- Sideroxylon laurifolium (A.Rich.) Engl. is a synonym of: Pleioluma laurifolia
- Sideroxylon myrsinoides (Benth.) F.Muell. is a synonym of: Planchonella myrsinifolia subsp. myrsinifolia
- Sideroxylon obovatum (R.Br.) Sm. is a synonym of: Planchonella obovata
- Sideroxylon pohlmanianum (F.Muell.) F.Muell. is a synonym of: Planchonella pohlmaniana var. pohlmaniana
- Sideroxylon richardii F.Muell. is a synonym of: Pleioluma laurifolia
- Sideroxylon sericeum Aiton is a synonym of: Sersalisia sericea
- Sideroxylon singuliflorum C.T.White & W.D.Francis is a synonym of: Pleioluma singuliflora
- Sideroxylon xerocarpum (Benth.) F.Muell. is a synonym of: Pleioluma xerocarpa
- Sigesbeckia orientalis
- Silphium trilobatum L. is a synonym of: Sphagneticola trilobata
- Simaba baileyana (Oliv.) Feuillet is a synonym of: Samadera baileyana
- Simaba bidwillii (Hook.f.) Feuillet is a synonym of: Samadera bidwillii
- Siphonodon australis
- Siphonodon australis Benth. var. australis is a synonym of: Siphonodon australis
- Siphonodon australis var. keysii F.M.Bailey is a synonym of: Siphonodon australis
- Siphonodon membranaceus
- Sisyrinchium micranthum
- Sloanea australis subsp. parviflora
- Sloanea langii
- Sloanea macbrydei
- Smilax aculeatissima
- Smilax australis
- Smilax australis var. latifolia F.Muell. is a synonym of: Smilax australis
- Smilax blumei
- Smilax calophylla
- Smilax elliptica R.Br. is a synonym of: Smilax australis
- Smilax glyciphylla
- Smilax kaniensis
- Smilax latifolia R.Br. is a synonym of: Smilax australis
- Smilax latifolia var. crassinervia A.DC. is a synonym of: Smilax australis
- Smilax sp. aff. S. elliptica
- Smilax spinescens Miq. is a synonym of: Smilax australis
- Solanum aculeatissimum Jacq. is a synonym of: Solanum capsicoides
- Solanum adenophorum var. indivisum Domin is a synonym of: Solanum cookii
- Solanum angustum Domin is a synonym of: Solanum parvifolium subsp. parvifolium
- Solanum auriculatum Aiton is a synonym of: Solanum mauritianum
- Solanum aviculare
- Solanum aviculare G.Forst. var. aviculare is a synonym of: Solanum aviculare
- Solanum betaceum
- Solanum biflorum R.Br. is a synonym of: Solanum ellipticum
- Solanum brisbanense (Herasim.) Herasim. is a synonym of: Solanum aviculare
- Solanum capsicoides
- Solanum cleistogamon Symon is a synonym of: Solanum ellipticum
- Solanum cookii
- Solanum dallachii Benth. is a synonym of: Solanum magnifolium
- Solanum defensum
- Solanum defensum F.Muell. is a synonym of: Solanum discolor
- Solanum dianthophorum Dunal is a synonym of: Solanum ellipticum
- Solanum dimorphispinum
- Solanum discolor
- Solanum discolor R.Br. var. discolor is a synonym of: Solanum discolor
- Solanum dunalianum
- Solanum ellipticum f. albiflora Domin is a synonym of: Solanum ellipticum
- Solanum ellipticum f. ellipticum Wawra is a synonym of: Solanum ellipticum
- Solanum ellipticum R. Br. var. chillagoense Domin is a synonym of: Solanum ellipticum
- Solanum ellipticum
- Solanum ellipticum var. ellipticum is a synonym of: Solanum ellipticum
- Solanum ellipticum var. typicum Domin is a synonym of: Solanum ellipticum
- Solanum eminens
- Solanum erianthum
- Solanum fervens
- Solanum francisii
- Solanum furfuraceum
- Solanum hamulosum
- Solanum intonsum
- Solanum largiflorum C.T.White is a synonym of: Solanum torvum
- Solanum lasiocarpum
- Solanum macoorai
- Solanum magnifolium
- Solanum mauritianum
- Solanum nigrum
- Solanum nigrum L. subsp. nigrum is a synonym of: Solanum nigrum
- Solanum nigrum subsp. schultesii (Opiz) Wessely is a synonym of: Solanum nigrum
- Solanum nodiflorum
- Solanum opacum A.Braun & Bouche is a synonym of: Solanum nigrum
- Solanum parvifolium R.Br. is a synonym of: Solanum parvifolium subsp. parvifolium
- Solanum parvifolium subsp. parvifolium
- Solanum parvifolium subsp. tropicum
- Solanum pseudocapsicum
- Solanum repandum G.Forst. is a synonym of: Solanum magnifolium
- Solanum seaforthianum
- Solanum shanesii F.Muell. is a synonym of: Lycianthes shanesii
- Solanum sp. ( Newcastle Range D.E. Symon 4907) is a synonym of: Solanum ellipticum
- Solanum sp. (Font Hills J.R. Clarkson+7901) is a synonym of: Solanum intonsum
- Solanum sporadotrichum
- Solanum stelligerum Sm. is a synonym of: Solanum parvifolium subsp. tropicum
- Solanum stelligerum var. magnifolium (F. Muell.) Benth. is a synonym of: Solanum magnifolium
- Solanum tetrandrum
- Solanum tetrandrum var. floribundum Benth. is a synonym of: Solanum tetrandrum
- Solanum torvum
- Solanum verbascifolium L. is a synonym of: Solanum erianthum
- Solanum viride R.Br. is a synonym of: Solanum viridifolium
- Solanum viridifolium
- Solenostigma paniculata Endl. is a synonym of: Celtis paniculata
- Solori involuta
- Solori koolgibberah
- Sonzaya australiana (F.Muell.) Marchand is a synonym of: Canarium australianum
- Sophora tomentosa L. is a synonym of: Sophora tomentosa subsp. australis
- Sophora tomentosa subsp. australis
- Spanoghea connata F.Muell. is a synonym of: Alectryon connatus
- Spartothamnella juncea
- Spartothamnus junceus Walp. is a synonym of: Spartothamnella juncea
- Spathodea campanulata
- Spermacoce brachystema
- Spermacoce exilis
- Spermacoce hirta L. is a synonym of: Mitracarpus hirtus
- Spermacoce latifolia
- Spermacoce membranacea
- Spermacoce ocymifolia
- Spermacoce prostrata
- Spermacoce remota
- Sphaerantia chartacea
- Sphaerantia discolor
- Sphagneticola trilobata
- Sphalmium racemosum
- Sphenostemon lobosporus
- Spiraeanthemum davidsonii
- Spondias pleiogyna F.Muell. is a synonym of: Pleiogynium timoriense
- Spondias solandri Benth. is a synonym of: Pleiogynium timoriense
- Sponia aspera (Brongn.) Decne. is a synonym of: Trema tomentosa var. aspera
- Sponia ilicifolia Kurz is a synonym of: Aphananthe philippinensis
- Stachycarpus amarus (Blume) Gaussen is a synonym of: Prumnopitys amara
- Stachycarpus ladei (Bailey) Gaussen is a synonym of: Prumnopitys ladei
- Stachytarpheta cayennensis
- Stachytarpheta dichotoma (Ruiz & Pav.) J.Vahl is a synonym of: Stachytarpheta cayennensis
- Stachytarpheta jamaicensis
- Stachytarpheta mutabilis
- Staphylea indica Burm. f. is a synonym of: Leea novoguineensis
- Steganthera australiana
- Steganthera cooperorum
- Steganthera laxiflora subsp. laxiflora
- Steganthera laxiflora subsp. lewisensis
- Steganthera macooraia
- Stemodia lythrifolia
- Stemodiacra lythrifolia (Benth.) Kuntze is a synonym of: Stemodia lythrifolia
- Stemona australiana
- Stemona lucida
- Stemona philippensis Merr. is a synonym of: Stemona lucida
- Stemonurus australianus (F.Muell.) Kuntze is a synonym of: Gomphandra australiana
- Stenocarpus cryptocarpus
- Stenocarpus cunninghamii Hook. is a synonym of: Stenocarpus sinuatus
- Stenocarpus cunninghamii
- Stenocarpus davallioides
- Stenocarpus reticulatus
- Stenocarpus sinuatus
- Stenocarpus sinuosus F.Muell. is a synonym of: Stenocarpus sinuatus
- Stenocarpus sinuosus var. intergrifolius F.Muell. is a synonym of: Stenocarpus sinuatus
- Stenocarpus sinuosus var. latifolius F.Muell. is a synonym of: Stenocarpus sinuatus
- Stenocarpus sinuosus var. sectus F.Muell. is a synonym of: Stenocarpus sinuatus
- Stenocarpus sp. Hinchinbrook Is. (F.D.Hocking AQ229860)
- Stenocarpus verticis
- Stephania australis Miers is a synonym of: Stephania japonica var. discolor
- Stephania bancroftii
- Stephania forsteri (DC.) A. Gray is a synonym of: Stephania japonica var. timoriensis
- Stephania forsteri (DC.) A.Gray is a synonym of: Stephania japonica var. timoriensis
- Stephania gaudichaudii A.Gray is a synonym of: Stephania japonica var. discolor
- Stephania hernandiifolia (Willd.) Walp. is a synonym of: Stephania japonica var. discolor
- Stephania japonica (Thunb.) Miers is a synonym of: Stephania japonica var. japonica
- Stephania japonica var. japonica
- Stephania japonica var. discolor
- Stephania japonica var. timoriensis
- Stephania sp. (Bamaga LSS AQ170418) is a synonym of: Stephania tuberosa
- Stephania tuberosa
- Stephanophysum longifolium
- Sterculia acerifolia A.Cunn. ex G.Don is a synonym of: Brachychiton acerifolius
- Sterculia australis (Schott & Endl.) Druce is a synonym of: Brachychiton australis
- Sterculia australis (Schott & Endl.) Druce var. australis is a synonym of: Brachychiton australis
- Sterculia australis var. dietrichiae Domin is a synonym of: Brachychiton australis
- Sterculia australis var. genuina Domin is a synonym of: Brachychiton australis
- Sterculia caudata Benth. is a synonym of: Brachychiton diversifolius subsp. diversifolius
- Sterculia decipiens W.Fitzg. is a synonym of: Brachychiton diversifolius subsp. diversifolius
- Sterculia garrawayae F.M.Bailey is a synonym of: Brachychiton garrawayae
- Sterculia holtzei
- Sterculia laurifolia F.Muell. is a synonym of: Franciscodendron laurifolium
- Sterculia paradoxa (Schott & Endl.) Druce is a synonym of: Brachychiton paradoxus
- Sterculia paradoxa (Schott & Endl.) Druce var. paradoxa is a synonym of: Brachychiton paradoxus
- Sterculia paradoxa var. garrawayae (Bailey) Domin is a synonym of: Brachychiton garrawayae
- Sterculia paradoxa var. typica Domin is a synonym of: Brachychiton paradoxus
- Sterculia quadrifida
- Sterculia ramiflora (R.Br.) Benth. is a synonym of: Brachychiton paradoxus
- Sterculia shillinglawii
- Sterculia trichosiphon Benth. is a synonym of: Brachychiton australis
- Sterculia viridiflora W.Fitzg. is a synonym of: Brachychiton viridiflorus
- Stictocardia queenslandica
- Stictocardia tiliifolia (Desr.) Hallier f. is a synonym of: Stictocardia queenslandica
- Stigmaphyllon australiense
- Stigmaphyllon timoriense
- Stigmarota jangomas Lour. is a synonym of: Flacourtia jangomas
- Stilago bunius L. is a synonym of: Antidesma bunius
- Stockwellia quadrifida
- Storckiella australiensis
- Stravadium denticulatum Miers is a synonym of: Barringtonia acutangula subsp. acutangula
- Stravadium gracile Miers is a synonym of: Barringtonia acutangula subsp. acutangula
- Streblus brunonianus
- Streblus glaber subsp. australianus
- Streblus glaber var. australianus (C.T.White) Corner is a synonym of: Streblus glaber subsp. australianus
- Strongylodon lucidus
- Strongylodon ruber B.C.Vogel is a synonym of: Strongylodon lucidus
- Strongylodon siderospermus sensu Verdcourt is a synonym of: Strongylodon lucidus
- Strychnos bancroftiana F.M.Bailey is a synonym of: Strychnos minor
- Strychnos bancroftiana F.M.Bailey is a synonym of: Strychnos minor
- Strychnos colubrina Stokes is a synonym of: Strychnos minor
- Strychnos ligustrina Blume is a synonym of: Strychnos lucida
- Strychnos lucida
- Strychnos minor
- Strychnos psilosperma
- Stylocoryna racemosa Cav. is a synonym of: Aidia racemosa
- Stylocoryne dallachyana (F. Muell. ex Benth.) Domin is a synonym of: Tarenna dallachiana subsp. dallachiana
- Stylosanthes scabra
- Stylurus robusta (A.Cunn. ex R.Br.) O.Deg. is a synonym of: Grevillea robusta
- Styphelia aggregata (R.Br.) Spreng. is a synonym of: Acrotriche aggregata
- Styphelia malayana var. novoguineensis Sleumer is a synonym of: Leucopogon malayanus subsp. novoguineensis
- Styrax villosum Blume is a synonym of: Alangium polyosmoides subsp. polyosmoides
- Sundacarpus amarus (Blume) C.N.Page is a synonym of: Prumnopitys amara
- Suregada glomerulata
- Surenus australis (F.Muell.) Kuntze is a synonym of: Toona ciliata
- Surenus toona (Rottler) Kuntze is a synonym of: Toona ciliata
- Suriana maritima
- Susum anthelminthicum Blume ex Schultes & J.H.Schultes in J.J.Roemer & J.A.Schultes is a synonym of: Hanguana malayana
- Symplocos ampulliformis
- Symplocos boonjee
- Symplocos bullata
- Symplocos cochinchinensis subsp. thwaitesii var. glaberrima Noot. is a synonym of: Symplocos glabra
- Symplocos cochinchinensis var. gittonsii Noot. is a synonym of: Symplocos gittinsii
- Symplocos cochinchinensis var. glaberrima Noot. is a synonym of: Symplocos glabra
- Symplocos cochinchinensis var. montana (C.T.White) Noot. is a synonym of: Symplocos wooroonooran
- Symplocos cochinchinensis var. pilosiuscula Noot. is a synonym of: Symplocos puberula
- Symplocos cochinchinensis var. stawellii (F.Muell.) Noot. is a synonym of: Symplocos stawellii
- Symplocos cochinensis subsp. thwaitesii var. gittonsii Noot. is a synonym of: Symplocos gittinsii
- Symplocos crassiramifera
- Symplocos cyanocarpa C.T.White is a synonym of: Symplocos cyanocarpa var. cyanocarpa
- Symplocos cyanocarpa var. cyanocarpa
- Symplocos cyanocarpa var. pilosa
- Symplocos gittinsii
- Symplocos glabra
- Symplocos graniticola
- Symplocos hayesii
- Symplocos hylandii
- Symplocos oresbia
- Symplocos paucistaminea
- Symplocos puberula
- Symplocos sp. Big Tableland (B.P.Hyland 10582) is a synonym of: Symplocos cyanocarpa var. pilosa
- Symplocos sp. Boonjie (B.P.Hyland 2753) is a synonym of: Symplocos boonjee
- Symplocos sp. Mt Finnigan (L.J. Brass 20129) is a synonym of: Symplocos oresbia
- Symplocos sp. North Mary (B.Gray 2543) is a synonym of: Symplocos bullata
- Symplocos stawellii
- Symplocos stawellii F.Muell. var. stawellii is a synonym of: Symplocos stawellii
- Symplocos stawellii var. montana C.T.White is a synonym of: Symplocos wooroonooran
- Symplocos thwaitesii
- Symplocos wooroonooran
- Syncarpia glomulifera (Sm.) Nied. is a synonym of: Syncarpia glomulifera subsp. glomulifera
- Syncarpia glomulifera subsp. glomulifera
- Synedrella nodiflora
- Syngonium podophyllum
- Synima cordierorum
- Synima macrophylla
- Synima reynoldsiae
- Synostemon albiflorus
- Synostemon sphenophyllus
- Synoum glandulosum subsp. glandulosum
- Synoum glandulosum (Sm.) A.Juss. var. glandulosum is a synonym of: Synoum glandulosum subsp. glandulosum
- Synoum glandulosum subsp. paniculosum
- Synoum glandulosum var. paniculosum F.Muell. is a synonym of: Synoum glandulosum subsp. paniculosum
- Synoum muelleri C.DC. is a synonym of: Synoum glandulosum subsp. paniculosum
- Syzygium acetosum Merr. & L.M.Perry is a synonym of: Syzygium branderhorstii
- Syzygium alatoramulum
- Syzygium alliiligneum
- Syzygium angophoroides
- Syzygium apodophyllum
- Syzygium aqueum
- Syzygium argyropedicum
- Syzygium armstrongii
- Syzygium australe
- Syzygium bamagense
- Syzygium banksii
- Syzygium boonjee
- Syzygium brachynemum F.Muell. is a synonym of: Syzygium smithii
- Syzygium branderhorstii
- Syzygium buettnerianum
- Syzygium bungadinnia
- Syzygium canicortex
- Syzygium cerasoides (Roxb.) Raizada is a synonym of: Syzygium nervosum
- Syzygium claviflorum
- Syzygium coolminianum (C.Moore) L.A.S.Johnson is a synonym of: Syzygium oleosum
- Syzygium cormiflorum
- Syzygium corynanthum
- Syzygium cryptophlebium
- Syzygium dansiei
- Syzygium dictyophlebium Merr. & L.M.Perry is a synonym of: Syzygium sayeri
- Syzygium divaricatum
- Syzygium endophloium
- Syzygium erythrocalyx
- Syzygium erythrodoxum
- Syzygium fibrosum
- Syzygium floribundum
- Syzygium floribundum Lauterb. & K.Schum. is a synonym of: Syzygium tierneyanum
- Syzygium forte (F.Muell.) B.Hyland is a synonym of: Syzygium forte subsp. forte
- Syzygium forte subsp. forte
- Syzygium forte subsp. potamophilum
- Syzygium fratris
- Syzygium glenum
- Syzygium graveolens
- Syzygium gustavioides
- Syzygium hedraiophyllum
- Syzygium hemilamprum subsp. hemilamprum
- Syzygium hemilamprum subsp. orophilum
- Syzygium jambosoides (Lauterb.) Merr. & L.M.Perry is a synonym of: Syzygium suborbiculare
- Syzygium johnsonii
- Syzygium kuranda
- Syzygium leptanthum (Wight) Nied. is a synonym of: Syzygium claviflorum
- Syzygium leptanthus Nied. is a synonym of: Syzygium claviflorum
- Syzygium lucidum Banks ex Gaertner is a synonym of: Gossia lucida
- Syzygium luehmannii
- Syzygium macilwraithianum
- Syzygium mackinnonianum
- Syzygium malaccense
- Syzygium maraca
- Syzygium minutuliflorum
- Syzygium monimioides
- Syzygium monospermum
- Syzygium mulgraveanum
- Syzygium nervosum
- Syzygium oleosum
- Syzygium operculatum (Roxb.) Nied. is a synonym of: Syzygium nervosum
- Syzygium papyraceum
- Syzygium pringlei
- Syzygium pseudofastigiatum
- Syzygium puberulum
- Syzygium resa
- Syzygium rubiginosum Merr. & L.M.Perry is a synonym of: Syzygium forte subsp. forte
- Syzygium sayeri
- Syzygium sharoniae
- Syzygium smithii
- Syzygium sp. (Bartle Frere BH 12923) is a synonym of: Syzygium fratris
- Syzygium sp. (Mt Misery GS 1131) is a synonym of: Syzygium monimioides
- Syzygium suborbiculare
- Syzygium tierneyanum
- Syzygium trachyphloium
- Syzygium unipunctatum
- Syzygium velae B.Hyland is a synonym of: Syzygium velarum
- Syzygium velarum
- Syzygium wesa
- Syzygium wilsonii (F.Muell.) B.Hyland is a synonym of: Syzygium wilsonii subsp. wilsonii
- Syzygium wilsonii subsp. wilsonii
- Syzygium wilsonii subsp. cryptophlebium (F.Muell.) B.Hyland is a synonym of: Syzygium cryptophlebium
- Syzygium wilsonii subsp. epigaeum
- Syzygium xerampelinum
T
- Tabernaemontana orientalis
- Tabernaemontana orientalis var. angustifolia Benth. is a synonym of: Tabernaemontana pandacaqui
- Tabernaemontana pandacaqui
- Tabernaemontana pubescens R.Br. is a synonym of: Tabernaemontana orientalis
- Tacca brownii Seem. is a synonym of: Tacca leontopetaloides
- Tacca brownii var. paeoniifolia (Domin) H.Limpr. is a synonym of: Tacca leontopetaloides
- Tacca leontopetaloides
- Tacca pinnatifida J.R.Forst. & G.Forst. is a synonym of: Tacca leontopetaloides
- Tacca pinnatifida subsp. interrupta (Warb.) H.Limpr. is a synonym of: Tacca leontopetaloides
- Tacca pinnatifida var. brownii F.M.Bailey is a synonym of: Tacca leontopetaloides
- Tacca pinnatifida var. paeoniifolia Domin is a synonym of: Tacca leontopetaloides
- Tacca pinnatifida var. permagna Domin is a synonym of: Tacca leontopetaloides
- Tagetes minuta
- Tamarindus indica
- Tanarius involucrata Kuntze is a synonym of: Macaranga involucrata var. mallotoides
- Tanghinia manghas (L.) G.Don. is a synonym of: Cerbera manghas
- Tapeinochilos ananassae
- Tapeinochilos australis K.Schum. is a synonym of: Tapeinochilos ananassae
- Tapeinochilos pungens (Teijsm. & Binn.) Miq. is a synonym of: Tapeinochilos ananassae
- Tapeinochilos pungens var. queenslandiae F.M.Bailey is a synonym of: Tapeinochilos ananassae
- Tapeinochilos queenslandiae (F.M.Bailey) K.Schum. is a synonym of: Tapeinochilos ananassae
- Tapeinosperma pallidum
- Tapeinosperma pseudojambosa
- Tapeinosperma sp. Cedar Bay (J.G. Tracey 14780) is a synonym of: Tapeinosperma pallidum
- Tarenna australis (Benth.) Ali & Robbrecht is a synonym of: Triflorensia australis
- Tarenna dallachiana (F.Muell. ex Benth.) S.Moore is a synonym of: Tarenna dallachiana subsp. dallachiana
- Tarenna dallachiana (F.Muell. ex Benth.) S.Moore is a synonym of: Tarenna monticola
- Tarenna dallachiana subsp. dallachiana
- Tarenna dallachiana subsp. expandens
- Tarenna expandens (F.Muell.) S.Moore is a synonym of: Tarenna dallachiana subsp. expandens
- Tarenna monticola
- Tarenna pentamera
- Tarenna sp. (Mt Lewis B.P. Hyland 3403) is a synonym of: Tarenna monticola
- Tarennoidea wallichii
- Tarrietia argyrodendron var. peralata F.M.Bailey is a synonym of: Argyrodendron peralatum
- Tarrietia argyrodendron var. trifoliolata (F.Muell.) F.M.Bailey is a synonym of: Argyrodendron trifoliolatum
- Tarrietia peralata (Bailey) Domin is a synonym of: Argyrodendron peralatum
- Tarrietia trifoliolata (F.Muell.) F.Muell. is a synonym of: Argyrodendron trifoliolatum
- Tarrietia trifoliolata (F.Muell.) F.Muell. var. trifoliolata is a synonym of: Argyrodendron trifoliolatum
- Tarrietia trifoliolata var. peralata F.M.Bailey is a synonym of: Argyrodendron peralatum
- Tasmannia insipida
- Tasmannia membranea
- Tasmannia sp. Mt Bellenden Ker (J.R.Clarkson 6571)
- Taxotrophis rectinervis F.Muell. is a synonym of: Aphananthe philippinensis
- Tecoma australis R.Br. is a synonym of: Pandorea pandorana
- Tecoma australis R.Br. var. australis is a synonym of: Pandorea pandorana
- Tecoma australis var. linearis F.M.Bailey is a synonym of: Pandorea pandorana
- Tecoma australis var. meonantha (Link) DC. is a synonym of: Pandorea pandorana
- Tecoma australis var. pandorea (Vent.) F.M.Bailey is a synonym of: Pandorea pandorana
- Tecoma diversifolia G.Don is a synonym of: Pandorea pandorana
- Tecoma floribunda DC. is a synonym of: Pandorea pandorana
- Tecoma meonantha (Link) Sweet is a synonym of: Pandorea pandorana
- Tecoma ochroxantha Kunth is a synonym of: Pandorea pandorana
- Tecoma oxleyi DC. is a synonym of: Pandorea pandorana
- Tecoma pandorana (Andrews) Skeels is a synonym of: Pandorea pandorana
- Tecoma pandorea Steud. is a synonym of: Pandorea pandorana
- Tecomanthe burungu
- Tecomanthe sp. Roaring Meg (L.J.Brass 20326) is a synonym of: Tecomanthe burungu
- Tephrosia brachyodon
- Tephrosia brachyodon Domin var. brachyodon is a synonym of: Tephrosia brachyodon
- Tephrosia brachyodon var. typica Domin is a synonym of: Tephrosia brachyodon
- Tephrosia dietrichiae
- Tephrosia oblongata
- Tephrosia purpurea
- Tephrosia rosea
- Teramnus tenuiflorus (Klein ex Willd.) Spreng. is a synonym of: Galactia tenuiflora
- Terminalia arenicola
- Terminalia aridicola subsp. chillagoensis
- Terminalia catappa
- Terminalia chillagoensis Domin is a synonym of: Terminalia aridicola subsp. chillagoensis
- Terminalia complanata
- Terminalia crassifolia Exell is a synonym of: Terminalia subacroptera
- Terminalia erythrocarpa
- Terminalia insularis C.T.White is a synonym of: Terminalia subacroptera
- Terminalia melanocarpa
- Terminalia microcarpa
- Terminalia microcarpa Decne. is a synonym of: Terminalia muelleri
- Terminalia muelleri
- Terminalia muelleri Benth. var. muelleri is a synonym of: Terminalia muelleri
- Terminalia muelleri var. minor Benth. is a synonym of: Terminalia muelleri
- Terminalia oblongata
- Terminalia oblongata F.Muell. subsp. oblongata is a synonym of: Terminalia oblongata
- Terminalia oblongata subsp. volucris (R.Br. ex Benth.) Pedley is a synonym of: Terminalia volucris
- Terminalia petiolaris
- Terminalia platyphylla
- Terminalia porphyrocarpa
- Terminalia sericocarpa F.Muell. is a synonym of: Terminalia microcarpa
- Terminalia subacroptera
- Terminalia volucris
- Terminalis angustifolius Medik. is a synonym of: Pleomele angustifolia
- Ternstroemia cherryi
- Tetracera cowleyana F.M.Bailey is a synonym of: Tetracera nordtiana
- Tetracera cowleyana F.M.Bailey var. cowleyana is a synonym of: Tetracera nordtiana
- Tetracera cowleyana var. teeweeree F.M.Bailey is a synonym of: Tetracera nordtiana
- Tetracera daemeliana
- Tetracera nordtiana
- Tetracera nordtiana F.Muell. var. nordtiana is a synonym of: Tetracera nordtiana
- Tetracera nordtiana var. moluccana (Martelli) Hoogland is a synonym of: Tetracera nordtiana
- Tetracera nordtiana var. wuthiana (F.Muell.) Hoogland is a synonym of: Tetracera nordtiana
- Tetracera wuthiana F.Muell. is a synonym of: Tetracera nordtiana
- Tetrameles nudiflora
- Tetranthera bindoniana (F.Muell.) Benth. is a synonym of: Litsea bindoniana
- Tetranthera dealbata R.Br. is a synonym of: Neolitsea dealbata
- Tetranthera ferruginea R.Br. is a synonym of: Litsea breviumbellata
- Tetranthera laurifolia Jacq. is a synonym of: Litsea glutinosa
- Tetrardisia bifaria
- Tetrardisia disticha Domin is a synonym of: Tetrardisia bifaria
- Tetrastigma crenatum
- Tetrastigma nitens
- Tetrastigma nitens (F.Muell.) Planch. var. nitens is a synonym of: Tetrastigma nitens
- Tetrastigma petraeum
- Tetrastigma pisicarpum
- Tetrastigma thorsborneorum
- Tetrasynandra laxiflora (Benth.) Perkins is a synonym of: Steganthera laxiflora subsp. laxiflora
- Tetrasynandra longipes (Benth.) Perkins is a synonym of: Wilkiea longipes
- Tetrasynandra pubescens (Benth.) Perkins is a synonym of: Wilkiea pubescens
- Tetrasynandra sp. (Mt Lewis B.P. Hyland 1053) is a synonym of: Steganthera laxiflora subsp. lewisensis
- Tetrasynandra sp. (Mt Lewis B.P. Hyland 1053) is a synonym of: Steganthera laxiflora subsp. lewisensis
- Tetrasynandra sp. (Mt Lewis BH 1053RFK) is a synonym of: Steganthera laxiflora subsp. lewisensis
- Thaleropia queenslandica
- Thea sinensis L. is a synonym of: Camellia sinensis
- Thespesia lampas var. thespesioides (Benth.) Fryxell is a synonym of: Azanza thespesioides
- Thespesia populnea
- Thespesia populnea var. bynoeana Domin is a synonym of: Thespesia populneoides
- Thespesia populnea var. populneoides (Roxb.) Pierre is a synonym of: Thespesia populneoides
- Thespesia populneoides
- Thespesia thespesioides (R.Br. ex Benth.) Fryxell is a synonym of: Azanza thespesioides
- Thevetia peruviana (Pers.) K.Schum. is a synonym of: Cascabela thevetia
- Thilachium lucidum DC. is a synonym of: Capparis lucida
- Thismia hawkesii
- Thismia lanternata
- Thismia sp. Melville Island (D.T.Liddle et al. 3603) is a synonym of: Thismia tectipora
- Thismia sp. Scrubby Creek M.S.Hopkins & A.W.Graham 94/8) is a synonym of: Thismia hawkesii
- Thismia lanternata
- Thismia tectipora
- Thoracostachyum sumatranum
- Thouinia australis A.Rich. is a synonym of: Atalaya salicifolia
- Thouinia hemiglauca F.Muell. is a synonym of: Atalaya hemiglauca
- Thouinia variifolia F.Muell. is a synonym of: Atalaya variifolia
- Thozetia racemosa Benth. is a synonym of: Marsdenia hemiptera
- Thryptomene oligandra
- Thryptomene oligandra F.Muell. var. oligandra is a synonym of: Thryptomene oligandra
- Thunbergia alata
- Thunbergia arnhemica
- Thunbergia fragrans C.Presl is a synonym of: Thunbergia arnhemica
- Thunbergia grandiflora
- Thunbergia laurifolia
- Thunbergia mysorensis
- Thunbergia powellii F.Muell. is a synonym of: Thunbergia arnhemica
- Thunbergia powellii F.Muell. is a synonym of: Thunbergia arnhemica
- Thyrsacanthus strictus Nees is a synonym of: Odontonema tubaeforme
- Tieghemopanax elegans (C.Moore & F.Muell.) R.Vig. is a synonym of: Polyscias elegans
- Tieghemopanax macgillivrayi R.Vig. is a synonym of: Polyscias macgillivrayi
- Tieghemopanax mollis (Benth.) R.Vig. is a synonym of: Polyscias mollis
- Tieghemopanax murrayi (F.Muell.) R.Vig. is a synonym of: Polyscias murrayi
- Tiliacora australiana
- Timonius brassii S. Moore is a synonym of: Timonius timon var. timon
- Timonius putaminosus F.Muell. is a synonym of: Antirhea putaminosa
- Timonius rumphii DC. is a synonym of: Timonius timon var. timon
- Timonius sericeus K. Schum. is a synonym of: Timonius timon var. timon
- Timonius singularis
- Timonius sp. Claudie River (B.Hyland 21096V)
- Timonius timon var. timon
- Tinospora angusta Forman is a synonym of: Tinospora esiangkara
- Tinospora berneyi F.M.Bailey is a synonym of: Tinospora smilacina
- Tinospora esiangkara
- Tinospora hullsii F.Muell. is a synonym of: Pachygone ovata
- Tinospora smilacina
- Tinospora smilacina var. berneyi (Bailey) Domin is a synonym of: Tinospora smilacina
- Tinospora smilacina var. typica Domin is a synonym of: Tinospora smilacina
- Tinospora walcottii Benth. is a synonym of: Tinospora smilacina
- Tithonia diversifolia
- Toechima daemelianum
- Toechima erythrocarpum
- Toechima lanceolatum C.T.White is a synonym of: Sarcotoechia lanceolata
- Toechima monticola
- Toechima pterocarpum
- Toona australis (F.Muell.) Harms is a synonym of: Toona ciliata
- Toona ciliata
- Tournefortia acclinis F.Muell. is a synonym of: Heliotropium sarmentosum
- Tournefortia argentea L.f. is a synonym of: Heliotropium foertherianum
- Tournefortia glabrifolia Domin is a synonym of: Heliotropium sarmentosum
- Tournefortia mollis F.Muell. is a synonym of: Heliotropium muelleri
- Tournefortia muelleri I.M.Johnst. is a synonym of: Heliotropium muelleri
- Tournefortia orientalis R.Br. is a synonym of: Heliotropium sarmentosum
- Tournefortia sarmentosa Lam. is a synonym of: Heliotropium sarmentosum
- Tournefortia sarmentosa var. magnifolia Domin is a synonym of: Heliotropium sarmentosum
- Trachymene geraniifolia
- Trachymene hookeri (Domin) A.E.Holland is a synonym of: Trachymene tenuifolia
- Trachymene montana A.E.Holland is a synonym of: Trachymene tenuifolia
- Trachymene procumbens var. hookeri (Domin) F.M.Bailey is a synonym of: Trachymene tenuifolia
- Trachymene tenuifolia
- Tradescantia zebrina
- Tragia chamaelea L. is a synonym of: Microstachys chamaelea
- Tragia finalis
- Tragia novae-hollandiae
- Trema aspera (Brongn.) Blume is a synonym of: Trema tomentosa var. aspera
- Trema aspera var. typica Domin is a synonym of: Trema tomentosa var. aspera
- Trema aspera var. xerophila Domin is a synonym of: Trema tomentosa var. aspera
- Trema cannabina
- Trema orientalis
- Trema tomentosa (Roxb.) H.Hara is a synonym of: Trema tomentosa var. tomentosa
- Trema tomentosa var. tomentosa
- Trema tomentosa var. aspera
- Trema tomentosa var. viridis (Planch.) Hewson is a synonym of: Trema tomentosa var. aspera
- Tribulopis homalococca var. alifer
- Tribulopis solandri
- Tribulus homalococcus var. alifer Domin is a synonym of: Tribulopis homalococca var. alifer
- Trichilia glandulosa Sm. is a synonym of: Synoum glandulosum subsp. glandulosum
- Trichodesma zeylanicum
- Tricholobus conchocarpus (F.Muell.) Domin is a synonym of: Connarus conchocarpus subsp. conchocarpus
- Tricholobus connaroides F.Muell. is a synonym of: Connarus conchocarpus subsp. conchocarpus
- Trichosanthes ambrozii Domin is a synonym of: Trichosanthes cucumerina var. cucumerina
- Trichosanthes cucumerina L. is a synonym of: Trichosanthes cucumerina var. cucumerina
- Trichosanthes cucumerina var. cucumerina
- Trichosanthes hearnii Benth. is a synonym of: Trichosanthes pilosa
- Trichosanthes holtzei F.Muell. is a synonym of: Trichosanthes pilosa
- Trichosanthes morrisii
- Trichosanthes muelleri Cogn. is a synonym of: Diplocyclos palmatus
- Trichosanthes odontosperma
- Trichosanthes ovigera Blume is a synonym of: Trichosanthes pilosa
- Trichosanthes pentaphylla
- Trichosanthes pilosa
- Trichosanthes sp. Kakadu (C.R.Dunlop 6639) is a synonym of: Trichosanthes morrisii
- Trichosanthes sp. Mount Lewis (B.Gray 167) is a synonym of: Trichosanthes odontosperma
- Trichosiphum australe Schott & Endl. is a synonym of: Brachychiton australis
- Trichospermum pleiostigma
- Tridax procumbens
- Triflorensia australis
- Triflorensia ixoroides
- Trigonostemon inopinatus
- Triodia procera
- Triosteum hirsutum Roxb. is a synonym of: Lasianthus hirsutus
- Tripetelus australasicus Lindl. is a synonym of: Sambucus australasica
- Triphasia monophylla DC. is a synonym of: Luvunga monophylla
- Triplaris americana
- Tristania brownii S.Moore is a synonym of: Welchiodendron longivalve
- Tristania conferta R.Br. var. conferta is a synonym of: Lophostemon confertus
- Tristania conferta var. fibrosa F.M.Bailey is a synonym of: Lophostemon confertus
- Tristania exiliflora F.Muell. is a synonym of: Tristaniopsis exiliflora
- Tristania lactiflua F.Muell. is a synonym of: Lophostemon lactifluus
- Tristania longivalvis F.Muell. is a synonym of: Welchiodendron longivalve
- Tristania macrosperma F.Muell. is a synonym of: Welchiodendron longivalve
- Tristania pachysperma (Bailey) W.D.Francis is a synonym of: Ristantia pachysperma
- Tristania suaveolens (Solander ex Gaertn.)Sm. is a synonym of: Lophostemon suaveolens
- Tristania suaveolens var. glabrescens F.M.Bailey is a synonym of: Lophostemon suaveolens
- Tristania suaveolens var. riparia Domin is a synonym of: Lophostemon grandiflorus subsp. riparius
- Tristania umbrosa A.Cunn. ex Lindl. is a synonym of: Xanthostemon umbrosus
- Tristaniopsis exiliflora
- Tristellateia australasiae
- Tristellateia australasiae A.Rich. f. australasiae is a synonym of: Tristellateia australasiae
- Tristellateia australasica Benth. is a synonym of: Tristellateia australasiae
- Tristellateia australis A.Rich. is a synonym of: Tristellateia australasiae
- Tristemma mauritianum
- Tristemma virusanum Comm. ex A.Juss. is a synonym of: Tristemma mauritianum
- Tristichocalyx diffusus Miers is a synonym of: Legnephora moorei
- Tristichocalyx pubescens (Benth.) F.Muell. is a synonym of: Pachygone ovata
- Tristiropsis acutangula
- Tristiropsis canarioides Valeton is a synonym of: Tristiropsis acutangula
- Tristiropsis subangula K.Schum. is a synonym of: Tristiropsis acutangula
- Tritaxis australiensis S.Moore is a synonym of: Dimorphocalyx australiensis
- Triumfetta bradshawii
- Triumfetta micracantha
- Triumfetta nigricans F.M.Bailey is a synonym of: Triumfetta pilosa
- Triumfetta pilosa
- Triumfetta rhomboidea
- Triumfetta suffruticosa Blume is a synonym of: Triumfetta pilosa
- Triumfetta velutina Vahl is a synonym of: Triumfetta rhomboidea
- Triunia erythrocarpa
- Triunia montana
- Trochocarpa bellendenkerensis
- Trophis scandens subsp. scandens
- Tupeia reinwardtiana Blume ex Korth. is a synonym of: Dendromyza reinwardtiana
- Turbina corymbosa
- Turraea brownii C.DC. is a synonym of: Turraea pubescens
- Turraea decandra Blanco is a synonym of: Dysoxylum gaudichaudianum
- Turraea pubescens
- Turrillia bleasdalei (F.Muell.) A.C.Sm. is a synonym of: Bleasdalea bleasdalei
- Tylecarpus australis C.T.White is a synonym of: Irvingbaileya australis
- Tylophora benthamii
- Tylophora calcarata Benth. is a synonym of: Heterostemma acuminatum
- Tylophora cinerascens
- Tylophora colorata
- Tylophora crebriflora S.T.Blake is a synonym of: Tylophora benthamii
- Tylophora flexuosa
- Tylophora floribunda Benth. is a synonym of: Tylophora benthamii
- Tylophora grandiflora
- Tylophora williamsii
- Typhonium alismifolium
- Typhonium brownii
- Typhonium flagelliforme
- Typhonium peltandroides
- Typhonium wilbertii
U
- Uncaria appendiculata Benth. is a synonym of: Uncaria lanosa var. appendiculata
- Uncaria callophylla
- Uncaria cordata (Lour.) Merr. is a synonym of: Uncaria cordata var. cordata
- Uncaria cordata var. cordata
- Uncaria lanosa f. appendiculata (Benth.) Ridsdale is a synonym of: Uncaria lanosa var. appendiculata
- Uncaria lanosa var. appendiculata
- Unona leichhardtii F.Muell. is a synonym of: Uvaria leichhardtii
- Unona nitidissima Dunal is a synonym of: Huberantha nitidissima
- Unona queenslandica Domin is a synonym of: Desmos goezeanus
- Unona wardiana F.M.Bailey is a synonym of: Desmos wardianus
- Uragoga dallachiana (Benth.) Kuntze is a synonym of: Psychotria dallachiana
- Uragoga fitzalanii (Benth.) Kuntze is a synonym of: Psychotria fitzalanii
- Uragoga loniceroides (DC.) Kuntze is a synonym of: Psychotria loniceroides
- Uragoga nesophila (F.Muell.) Kuntze is a synonym of: Psychotria nesophila
- Uragoga poliostemma (Benth.) Kuntze is a synonym of: Psychotria poliostemma
- Urena lobata
- Urochloa pubigera
- Urochloa reptans
- Urochloa subquadripara
- Uromyrtus metrosideros
- Uromyrtus tenella
- Urostigma backhousei Miq. is a synonym of: Ficus obliqua
- Urostigma brachypodum Miq. is a synonym of: Ficus brachypoda
- Urostigma cunninghamii Miq. is a synonym of: Ficus virens var. virens
- Urostigma eugenioides Miq. is a synonym of: Ficus obliqua
- Urostigma fraseri Miq. is a synonym of: Ficus virens var. virens
- Urostigma lachnocaulon Miq. is a synonym of: Ficus brachypoda
- Urostigma leichhardtii Miq. is a synonym of: Ficus rubiginosa f. rubiginosa
- Urostigma leucotrichum Miq. is a synonym of: Ficus platypoda
- Urostigma nesophilum Miq. is a synonym of: Ficus virens var. virens
- Urostigma nitidum Miq. is a synonym of: Ficus benjamina
- Urostigma obliquum (G.Forst.) Miq. is a synonym of: Ficus obliqua
- Urostigma pilosum (Blume) Miq. is a synonym of: Ficus drupacea
- Urostigma platypodum f. ellipticum Miq. is a synonym of: Ficus platypoda
- Urostigma platypodum f. glabrior Miq. is a synonym of: Ficus brachypoda
- Urostigma platypodum f. minor glabrior Miq. is a synonym of: Ficus brachypoda
- Urostigma platypodum Miq. is a synonym of: Ficus platypoda
- Urostigma psychotriifolium Miq. is a synonym of: Ficus virens var. virens
- Urostigma puberulum Miq. is a synonym of: Ficus subpuberula
- Urostigma rubinosum (Desf. ex Vent.) Gasp. is a synonym of: Ficus rubiginosa f. rubiginosa
- Urostigma vitellinum Miq. is a synonym of: Ficus brachypoda
- Urtica argentea G.Forst. is a synonym of: Pipturus argenteus
- Urtica candicans Burm.f. is a synonym of: Callicarpa candicans
- Urtica incisa
- Urtica interrupta L. is a synonym of: Laportea interrupta
- Urtica moroides Wedd. is a synonym of: Dendrocnide moroides
- Urtica photinophylla Wedd. is a synonym of: Dendrocnide photinophylla
- Urtica repanda Blume is a synonym of: Nothocnide repanda
- Urtica villosa Murray is a synonym of: Fatoua villosa
- Urticastrum moroides (Wedd.) Kuntze is a synonym of: Dendrocnide moroides
- Urticastrum photinophylla (Kunth) Kuntze is a synonym of: Dendrocnide photinophylla
- Utricularia uliginosa
- Uva goezeana (F.Muell.) Kuntze is a synonym of: Desmos goezeanus
- Uva holtzei (F.Muell.) Kuntze is a synonym of: Uvaria holtzei
- Uva membranacea (Benth.) Kuntze is a synonym of: Uvaria concava
- Uvaria concava
- Uvaria glabra
- Uvaria goezeana F.Muell. is a synonym of: Desmos goezeanus
- Uvaria heteropetala F.Muell. is a synonym of: Meiogyne heteropetala
- Uvaria holtzei
- Uvaria leichhardtii
- Uvaria membranacea Benth. is a synonym of: Uvaria concava
- Uvaria micrantha
- Uvaria odorata Lam. is a synonym of: Cananga odorata
- Uvaria rufa
- Uvaria rupestre
- Uvaria sankowskyi
- Uvaria scabridula
- Uvaria topazensis
- Uvaria uhrii
- Uvaria unguiculata
V
- Valeriana chinensis L. is a synonym of: Commicarpus chinensis subsp. chinensis
- Valvanthera albiflora C.T.White is a synonym of: Hernandia albiflora
- Vandasia retusa (Sol. ex Benth.) Domin is a synonym of: Vandasina retusa
- Vandasina retusa
- Vanieria cochinchinensis Lour. is a synonym of: Maclura cochinchinensis
- Vanroyena castanosperma
- Vavaea amicorum
- Vavaea australiana S.T.Blake is a synonym of: Vavaea amicorum
- Ventilago ecorollata
- Ventilago pubiflora
- Ventilago viminalis
- Vepris simplicifolia Endl. is a synonym of: Sarcomelicope simplicifolia subsp. simplicifolia
- Veratrum malayanum Jack is a synonym of: Hanguana malayana
- Verbena mutabilis Jacq. is a synonym of: Stachytarpheta mutabilis
- Verbena bonariensis
- Verbena cayennensis Rich. is a synonym of: Stachytarpheta cayennensis
- Verbena jamaicensis L. is a synonym of: Stachytarpheta jamaicensis
- Verbena litoralis
- Verbesina biflora L. is a synonym of: Wollastonia biflora var. biflora
- Verbesina lavenia L. is a synonym of: Adenostemma lavenia
- Verbesina nodiflora L. is a synonym of: Synedrella nodiflora
- Vernonia cinerea (L.) Less. is a synonym of: Cyanthillium cinereum
- Vernonia patula (Aiton) Merr. is a synonym of: Cyanthillium patulum
- Veronica plebeia
- Vigna marina
- Vigna sp. Station Creek (R.J.Lawn CQ3284)
- Villaresia adenophylla Domin is a synonym of: Citronella smythii
- Villaresia moorei Benth. is a synonym of: Citronella moorei
- Villaresia smythii F.Muell. is a synonym of: Citronella smythii
- Vinca rosea L. is a synonym of: Catharanthus roseus
- Vinca rosea L. var. rosea is a synonym of: Catharanthus roseus
- Vinca rosea var. occellatus (G.Don) F.M.Bailey is a synonym of: Catharanthus roseus
- Vincetoxicum calcaratum (Benth.) Kuntze is a synonym of: Heterostemma acuminatum
- Vincetoxicum carnosum (R.Br.) Benth. is a synonym of: Cynanchum carnosum
- Vincetoxicum erubescens (R.Br.) Kuntze is a synonym of: Cynanchum pedunculatum
- Vincetoxicum flexuosum (R.Br.) Kuntze is a synonym of: Tylophora flexuosa
- Vincetoxicum grandiflorum (R.Br.) Kuntze is a synonym of: Tylophora grandiflora
- Vincetoxicum leptolepis Benth. is a synonym of: Cynanchum leptolepis
- Vincetoxicum ovatum Benth. is a synonym of: Cynanchum bowmanii
- Vincetoxicum pedunculatum (R.Br.) Kuntze is a synonym of: Cynanchum pedunculatum
- Vincetoxicum polyanthum Kuntze is a synonym of: Tylophora benthamii
- Viola enneasperma L. is a synonym of: Afrohybanthus enneaspermus
- Viola hederacea subsp. perreniformis L.G.Adams is a synonym of: Viola perreniformis
- Viola perreniformis
- Viscum angulatum Heyne ex DC. is a synonym of: Viscum articulatum
- Viscum angulatum Heyne ex DC. is a synonym of: Viscum articulatum
- Viscum articulatum
- Viscum incanum var. aureum Ettingsh. is a synonym of: Notothixos subaureus
- Viscum ovalifolium
- Viscum pedunculatum Barlow is a synonym of: Viscum ovalifolium
- Viscum pycnanthum Domin is a synonym of: Korthalsella rubra subsp. rubra
- Visenia umbellata Houtt. is a synonym of: Melochia umbellata
- Vitex acuminata
- Vitex acuminata R.Br. is a synonym of: Vitex queenslandica
- Vitex bicolor Willd. is a synonym of: Vitex trifolia var. trifolia
- Vitex cunningham Schauer & Pl. is a synonym of: Vitex helogiton
- Vitex cunninghamii Schauer is a synonym of: Vitex glabrata
- Vitex dalrympleana F.Muell. is a synonym of: Gmelina dalrympleana
- Vitex glabrata
- Vitex glabrata R.Br. is a synonym of: Vitex helogiton
- Vitex helogiton
- Vitex lignum-vitae
- Vitex macrophylla R.Br. is a synonym of: Gmelina dalrympleana
- Vitex melicopea
- Vitex negundo L. is a synonym of: Vitex trifolia var. trifolia
- Vitex petiolaris Domin is a synonym of: Vitex trifolia var. trifolia
- Vitex queenslandica
- Vitex rotundifolia
- Vitex trifolia L. is a synonym of: Vitex trifolia var. trifolia
- Vitex trifolia var. trifolia
- Vitex trifolia var. acutifolia Benth. is a synonym of: Vitex trifolia var. trifolia
- Vitex trifolia var. bicolor (Willd.) Moldenke is a synonym of: Vitex trifolia var. trifolia
- Vitex trifolia var. obovata Benth. is a synonym of: Vitex rotundifolia
- Vitex trifolia var. simplicifolia Cham. is a synonym of: Vitex rotundifolia
- Vitex trifolia var. unifoliolata Schauer is a synonym of: Vitex rotundifolia
- Vitex triphylla Royle is a synonym of: Vitex trifolia var. trifolia
- Viticipremna queenslandica Munir is a synonym of: Vitex queenslandica
- Vitis acetosa (F.Muell.) F.Muell. is a synonym of: Ampelocissus acetosa
- Vitis adnata (Roxb.) Wight & Arn. is a synonym of: Cissus adnata
- Vitis antarctica (Vent.) Benth. is a synonym of: Cissus antarctica
- Vitis baudiniana (DC.) F.Muell. is a synonym of: Cissus antarctica
- Vitis brachypoda F.Muell. is a synonym of: Cissus sterculiifolia
- Vitis cardiophylla F.Muell. is a synonym of: Cissus cardiophylla
- Vitis clematidea F.Muell. is a synonym of: Causonis clematidea
- Vitis cordata (Roxb.) Voigt is a synonym of: Cissus cardiophylla
- Vitis gardineri F.M.Bailey is a synonym of: Ampelocissus gardineri
- Vitis hastata Miq. is a synonym of: Cissus hastata
- Vitis hypoglauca (A.Gray) F.Muell. is a synonym of: Cissus hypoglauca
- Vitis japonica Thunb. is a synonym of: Causonis japonica
- Vitis mollis Wall. is a synonym of: Causonis japonica
- Vitis nitens F.Muell. is a synonym of: Tetrastigma nitens
- Vitis oblonga Benth. is a synonym of: Cissus oblonga
- Vitis opaca (F.Muell.) Benth. is a synonym of: Clematicissus opaca
- Vitis penninervis F.Muell. is a synonym of: Cissus penninervis
- Vitis pisicarpa Zipp. ex Miq. is a synonym of: Tetrastigma pisicarpum
- Vitis psoraliifolia F.Muell. is a synonym of: Causonis trifolia
- Vitis repens Wight & Arn. is a synonym of: Cissus repens
- Vitis sagittifolia M.Lawson is a synonym of: Cissus hastata
- Vitis saponaria Seem. ex Benth. is a synonym of: Cayratia saponaria
- Vitis sterculiifolia F.Muell. ex Benth. is a synonym of: Cissus sterculiifolia
- Vitis strigosa F.M.Bailey is a synonym of: Cayratia saponaria
- Vitis trifolia L. is a synonym of: Causonis trifolia
- Vittadinia bicolor
- Vittadinia scabra
- Voacanga grandifolia
- Volkameria commersonii Poir. is a synonym of: Clerodendrum inerme
- Volkameria inermis L. is a synonym of: Clerodendrum inerme
- Volkameria nereifolia Roxb. is a synonym of: Clerodendrum inerme
- Volkameria tomentosaVent. is a synonym of: Clerodendrum tomentosum
W
- Wailesia picta Lindley is a synonym of: Dipodium pictum
- Waltheria indica
- Wardellia paniculata F. Muell. is a synonym of: Pendressia wardellii
- Waterhousea floribunda (F.Muell.) B.Hyland is a synonym of: Syzygium floribundum
- Waterhousea hedraiophylla (F.Muell.) B.Hyland is a synonym of: Syzygium hedraiophyllum
- Waterhousea mulgraveana B.Hyland is a synonym of: Syzygium mulgraveanum
- Waterhousea unipunctata B.Hyland is a synonym of: Syzygium unipunctatum
- Webera dallachiana Benth. is a synonym of: Tarenna dallachiana subsp. dallachiana
- Webera dallachiana var. expandens (F.Muell.) F.Muell. is a synonym of: Tarenna dallachiana subsp. expandens
- Webera expandens F.Muell. is a synonym of: Tarenna dallachiana subsp. expandens
- Wedelia biflora (L.) DC. is a synonym of: Wollastonia biflora var. biflora
- Wedelia cunninghamii DC. is a synonym of: Blainvillea cunninghamii
- Wedelia longipes Klatt is a synonym of: Apowollastonia longipes
- Wedelia trilobata (L.) Hitchc. is a synonym of: Sphagneticola trilobata
- Weinmannia apetala F.M.Bailey is a synonym of: Pseudoweinmannia apetala
- Weinmannia biagiana F.Muell. is a synonym of: Karrabina biagiana
- Weinmannia paniculata F.Muell. [nom. illeg.] is a synonym of: Ackama paniculosa
- Weinmannia paniculosa F.Muell. is a synonym of: Ackama paniculosa
- Welchiodendron longivalve
- Wendlandia basistaminea
- Wendlandia connata
- Wendlandia inclusa
- Wendlandia urceolata
- Wetria australiensis
- Whyanbeelia terrae-reginae
- Wikstroemia indica
- Wikstroemia shuttleworthiana Meisn. is a synonym of: Wikstroemia indica
- Wikstroemia shuttleworthii Meisn. is a synonym of: Wikstroemia indica
- Wikstroemia viridiflora Meisn. is a synonym of: Wikstroemia indica
- Wilkiea angustifolia
- Wilkiea cordata
- Wilkiea hylandii
- Wilkiea kaarruana
- Wilkiea longipes
- Wilkiea loxocarya (Benth.) Perkins is a synonym of: Hedycarya loxocarya
- Wilkiea macooraia (Bailey) Perkins is a synonym of: Steganthera macooraia
- Wilkiea macrophylla
- Wilkiea paniculata Whiffin is a synonym of: Pendressia wardellii
- Wilkiea pubescens
- Wilkiea rigidifolia
- Wilkiea smithii
- Wilkiea sp. ( Mt Molloy LSS 3955) is a synonym of: Wilkiea smithii
- Wilkiea sp. (= RFK/3350) is a synonym of: Pendressia wardellii
- Wilkiea sp. (Barong, L.W. Jessup 719) is a synonym of: Wilkiea cordata
- Wilkiea sp. (Boonjee BG 5413) is a synonym of: Wilkiea cordata
- Wilkiea sp. (Mt Hemmant BH 8485) is a synonym of: Hemmantia webbii
- Wilkiea sp. (Mt Molloy L.S. Smith 3955) is a synonym of: Wilkiea smithii
- Wilkiea sp. (Palmerston BH 80RFK) is a synonym of: Wilkiea kaarruana
- Wilkiea sp. (Russell Gorge, S.J. Dansie 1909) is a synonym of: Wilkiea cordata
- Wilkiea sp. (Somerset L.J. Webb+ 11845) is a synonym of: Wilkiea rigidifolia
- Wilkiea sp. (Somerset L.J. Webb+ 11845) is a synonym of: Wilkiea rigidifolia
- Wilkiea sp. A is a synonym of: Wilkiea kaarruana
- Wilkiea sp. B is a synonym of: Wilkiea sp. McDowall Range (J.G.Tracey 14552)
- Wilkiea sp. McDowall Range (J.G.Tracey 14552)
- Wilkiea sp. Palmerston (B.P.Hyland 80) is a synonym of: Wilkiea kaarruana
- Wilkiea sp.(Barong, L.W. Jessup 719) is a synonym of: Wilkiea angustifolia
- Wilkiea wardellii (F.Muell.) Perkins is a synonym of: Pendressia wardellii
- Windmannia biagiana (F.Muell.) Kuntze is a synonym of: Karrabina biagiana
- Wisteria australis (Endl.) F.Muell. is a synonym of: Austrocallerya australis
- Wisteria involuta Sprague is a synonym of: Solori involuta
- Wisteria maideniana (F.M.Bailey) C.Moore is a synonym of: Austrocallerya australis
- Wisteria pilipes (F.M.Bailey) Sprague is a synonym of: Austrocallerya pilipes
- Wodyetia bifurcata
- Wollastonia biflora var. biflora
- Wormia alata DC. is a synonym of: Dillenia alata
- Wrightia baccelliana F.Muell. is a synonym of: Melodinus baccellianus
- Wrightia laevis
- Wrightia laevis subsp. millgar (Bailey) Ngan is a synonym of: Wrightia laevis
- Wrightia millgar F.M.Bailey is a synonym of: Wrightia laevis
- Wrightia pubescens R.Br. is a synonym of: Wrightia pubescens subsp. pubescens
- Wrightia pubescens R.Br. is a synonym of: Wrightia pubescens subsp. pubescens
- Wrightia pubescens subsp. pubescens
- Wrightia pubescens R.Br. var. pubescens is a synonym of: Wrightia pubescens subsp. pubescens
- Wrightia pubescens subsp. penicillata
- Wrightia pubescens var. penicillata F.M.Bailey is a synonym of: Wrightia pubescens subsp. penicillata
- Wrightia saligna
- Wrightia versicolor
X
- Xanthochymus dulcis Roxb. is a synonym of: Garcinia dulcis
- Xanthophyllum fragrans
- Xanthophyllum macintyrii F.Muell. is a synonym of: Xanthophyllum octandrum
- Xanthophyllum octandrum
- Xanthostemon arenarius
- Xanthostemon brachyandrus C.T.White is a synonym of: Lindsayomyrtus racemoides
- Xanthostemon chrysanthus
- Xanthostemon crenulatus
- Xanthostemon eucalyptoides
- Xanthostemon formosus
- Xanthostemon graniticus
- Xanthostemon pachyspermus F.Muell & F.M.Bailey is a synonym of: Ristantia pachysperma
- Xanthostemon paradoxus
- Xanthostemon pubescens C.T.White is a synonym of: Xanthostemon whitei
- Xanthostemon umbrosus
- Xanthostemon verticillatus
- Xanthostemon whitei
- Xanthostemon xerophilus
- Xanthostemon youngii
- Xantolis cotinifolia (A.DC.) Baehni is a synonym of: Planchonella cotinifolia var. cotinifolia
- Xantolis euphlebia (F.Muell.) Baehni is a synonym of: Planchonella euphlebia
- Xantolis myrsinoides (Benth.) Baehni is a synonym of: Planchonella myrsinifolia subsp. myrsinifolia
- Xenostegia tridentata
- Xerotes banksii R.Br. is a synonym of: Lomandra banksii
- Xerotes hystrix R.Br. is a synonym of: Lomandra hystrix
- Ximenia americana
- Ximenia exarmata F.Muell. is a synonym of: Ximenia americana
- Xylophyllos latifolius (R.Br.) Kuntze is a synonym of: Exocarpos latifolius
- Xylopia maccreae
- Xylopia monosperma
- Xylopia sp. (Bertiehaugh Homestead CD CC173) is a synonym of: Xylopia monosperma
- Xylopia sp. (Bertiehaugh Homestead CD CC173) is a synonym of: Xylopia monosperma
- Xylopia sp. Melville Island (J. Russell_ Smith 2148) is a synonym of: Xylopia monosperma
- Xylosma ovata
- Xylosma sp. Mt Lewis (G.Sankowsky 1108)
- Xylosma sp. Temple Bay (P.I.Forster PIF8980)
Y
Z
- Zanonia clavigera Wall. is a synonym of: Neoalsomitra clavigera
- Zanonia hookeri (F.Muell.) F.Muell. is a synonym of: Neoalsomitra clavigera
- Zanthoxylum brachyacanthum
- Zanthoxylum dominianum Merr. & L.M.Perry is a synonym of: Zanthoxylum ovalifolium
- Zanthoxylum inerme C.T.White & W.D.Francis is a synonym of: Zanthoxylum ovalifolium
- Zanthoxylum nitidum
- Zanthoxylum ovalifolium
- Zanthoxylum parviflorum Benth. is a synonym of: Zanthoxylum rhetsa
- Zanthoxylum rhetsa
- Zanthoxylum suberosum C.T.White is a synonym of: Zanthoxylum ovalifolium
- Zanthoxylum torvum F.Muell. is a synonym of: Zanthoxylum nitidum
- Zanthoxylum veneficum F.M.Bailey is a synonym of: Zanthoxylum brachyacanthum
- Zehneria cunninghamii
- Zehneria ejecta F.M.Bailey is a synonym of: Muellerargia timorensis
- Zehneria erythrocarpa F.Muell. is a synonym of: Diplocyclos palmatus
- Zieria alata
- Zieria eungellaensis
- Zieria insularis
- Zieria madida
- Zieria robertsiorum
- Zieria smithii G. Jackson subsp. tomentosa J.A. Armstrong is a synonym of: Zieria smithii
- Zieria smithii
- Zieria smithii Jacks. subsp. B is a synonym of: Zieria smithii
- Zieria smithii Jacks. var. smithii is a synonym of: Zieria smithii
- Zieria smithii subsp. 'b' is a synonym of: Zieria smithii
- Zieria smithii var. typica Domin is a synonym of: Zieria smithii
- Zingiber amaricans Blume is a synonym of: Zingiber zerumbet
- Zingiber aromaticum Valeton is a synonym of: Zingiber zerumbet
- Zingiber dubium Afzel. is a synonym of: Costus dubius
- Zingiber truncatum Stokes is a synonym of: Zingiber zerumbet
- Zingiber zerumbet
- Zingiber zerumbet f. australiana F.M.Bailey is a synonym of: Zingiber zerumbet
- Zizania terrestris L. is a synonym of: Scleria terrestris
- Ziziphus hamosa Wall. is a synonym of: Sageretia hamosa
- Ziziphus mauritiana
- Ziziphus oenopolia
- Ziziphus quadrilocularis
- Ziziphus timoriensis
- Zygia ramiflora (F.Muell.) Kosterm. is a synonym of: Archidendron ramiflorum
- Zygogynum queenslandianum (Vink) Vink is a synonym of: Bubbia queenslandiana subsp. queenslandiana
- Zygogynum queenslandianum (Vink) Vink subsp. queenslandianum is a synonym of: Bubbia queenslandiana subsp. queenslandiana
- Zygogynum queenslandianum subsp. australe (Vink) Vink is a synonym of: Bubbia queenslandiana subsp. australis
- Zygogynum semecarpoides (F.Muell.) Vink is a synonym of: Bubbia semecarpoides
- Zygogynum semecarpoides (F.Muell.) Vink var. semecarpoides is a synonym of: Bubbia semecarpoides
- Zygogynum semecarpoides var. whiteanum Vink is a synonym of: Bubbia whiteana
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