Australian Tropical Rainforest Plants - Online edition

Glochidion sessiliflorum Airy Shaw var. sessiliflorum

Shrub (woody or herbaceous, 1-6 m tall)
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Flowers. © CSIRO
Leaves and Flowers. © CSIRO
Cotyledon stage, epigeal germination. © CSIRO
10th leaf stage. © CSIRO
Scale bar 10mm. © CSIRO
Female flower. © CSIRO

Airy Shaw, H.K. (1980) Kew Bulletin 35: 640.

Common name

Sessile Buttonwood; Pin Flower Tree; Buttonwood


Sometimes flowering and fruiting when no more than a shrub. Dead bark layered.


Stipules triangular, about 1.5 mm long. Leaf blades about 5.5-14 x 2.5-5.5 cm. Midrib slightly raised on the upper surface. Leaf bearing twigs mainly glabrous.


Male flowers: Inflorescence without a peduncle and strictly axillary. Flowers about 3 mm diam. without a disk. Female flowers: Flowers about 1.5-2 mm diam., +/- sessile. Style +/- columnar, exserted at flowering.


Capsules about 14-lobed, concave at the apex, about 15 mm diam., resembling a miniature Queensland Blue pumpkin (Cucurbita pepo). Cotyledons cupped, much wider than the radicle.


Cotyledons about 12-13 x 8-9 mm. Hypocotyl hairy. First pair of leaves with stipules about 1 mm long. At the tenth leaf stage: leaf blade obovate, apex shortly acuminate or mucronate, base cuneate, glabrous, veins 6-9 forming loops inside the leaf blade margin. Stipules shortly triangular. Leaves are often produced on shoots which resemble pinnate leaves. Seed germination time 17 days.

Distribution and Ecology

Endemic to CYP, restricted to the Claudie River and McIlwraith Range areas. Altitudinal range from near sea level to 450 m. Grows in or on the margins of well developed rain forest.

Glochidion sessiliflorum Airy Shaw, Kew Bulletin 31: 350(1976), Type: Qld, Claudie River, lat. 12 deg 45 S., long. 143 deg 15 E., rain forest, alt. 75 m, 16 Oct. 1974, Hyland 7805; holo: K.
RFK Code
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