Australian Tropical Rainforest Plants - Online edition

Tarenna pentamera (Benth.) S.T.Reynolds

Shrub (woody or herbaceous, 1-6 m tall)
Click/tap on images to enlarge
Fruit. © R.L. Barrett
Leaves and fruit. © R.L. Barrett
Leaves and fruit. © R.L. Barrett
Leaves and fruit. © R.L. Barrett.

Reynolds, S.T. & Forster, P.I. (2005) Austrobaileya 7(1): 40-43.


Shrub or tree 2-8 m tall, bark light brown or greyish brown; young branches hairy.


Leaves elliptic, narrowly elliptic or elliptic-ovate, apex acute or shortly acuminate, base cuneate to attenuate and decurrent into the petiole; lamina (5.5-)8.5-15(-18.5) x (2-)3-5(-6.3) cm; upper surface glabrous or sparsely hairy, lower surface densely hairy or only on the nerves, usually with hairy tufts in axils; lateral nerves 8-12 pairs; stipules free or slightly connate at base, ovate or triangular, 5.5-7 x 2.5-3 mm, keeled and aristate, appressed hairy outside, glabrous inside.


Panicles 3-branched, 4.5-7 cm long; flowers perfumed; calyx densely appressed hairy outside, tube 1 mm long x 1 mm wide at mouth, lobes semi-circular and small 0.5-0.7 mm. Corolla white, tube trumpet-shaped 2-3.5 mm long, wider at mouth, glabrous outside, densely hairy at throat; corolla lobes longer than tube, 4.5-6 x 1.5-2 mm, obovate, obtuse, reflexed. Stamens exserted; style with stigma thick, elongate and club-shaped, 7.5-9 mm long.


Fruit purple-black when ripe, 5-6 x 5.5-6 mm, 2-seeded; seeds solitary in each locule.


Features not available.

Distribution and Ecology

Occurs in WA and NT. Altitudinal range from sea level to 250 m. Grows in semi-deciduous vine thickets on coastal dunes, and near mangroves.

Natural History & Notes

Description from Austrobaileya 7(1).


Ixora pentamera Benth., Flora Australiensis 3: 416 (1867), Type: "N. Australia. Islands of the Gulf of Carpentaria, R. Brown."

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