Australian Tropical Rainforest Plants - Online edition

Streblus glaber subsp. australianus (C.T.White) C.C.Berg

Shrub (woody or herbaceous, 1-6 m tall)
Click/tap on images to enlarge
Fruit. © R. Jensen
Leaves and fruit. © R. Jensen
Leaves and fruit. © R. Jensen
Female flower, tepals, ovary, style & papillose stigma. © CSIRO
Male flower, oblique view, tepals & anthers. © CSIRO
Scale bar 10mm. © CSIRO
10th leaf stage. © CSIRO
Cotyledon stage, epigeal germination. © CSIRO

Berg, C.C. (2005) Blumea 50: 548.

Common name

Smooth Streblus


Seldom exceeding 30 cm dbh.


Petioles produce a yellowish, milky exudate. Leaf blades about 5-12 x 1.5-3.5 cm. Lateral veins forming distinct loops inside the blade margin.


Male and female flowers sessile, inflorescence bracts ovate-lanceolate, sessile. Male flowers: Inflorescence about 20-40 mm long. Staminal filaments about 2 mm long. Female flowers: Inflorescence about 5-15 mm long. Ovary about 2 mm long. Style arms about 1.5-2 mm long.


Fruits about 10 x 11 mm. Perianth persistent at the base and style arms persistent at the apex. Seed about 5 x 4 mm. Embryo +/- U-shaped, cotyledons folded, much wider than the radicle.


Cotyledons obovate, somewhat truncate at the apex. At the tenth leaf stage: leaf blade ovate, apex acuminate, base cuneate, margin crenate, glabrous; very small dark red glands can be seen with a lens on both the upper and lower surfaces of the leaf blade, and also on the midrib, petiole and stem; stipules elongate-triangular, clothed in very fine hairs. Seed germination time 29 to 38 days.

Distribution and Ecology

Endemic to NEQ, widely distributed throughout the area. Altitudinal range from 600-1200 m. Grows as an understory tree in well developed upland and mountain rain forest.

Streblus glaber var. australianus (C.T.White) Corner, The Gardens' Bulletin Singapore 19 : 221(1962). Paratrophis australiana C.T.White, Contributions from the Arnold Arboretum of Harvard University 4: 15(1933), Type: Queensland, Herberton Range, alt. 900 m.,Kajewski 1378 19 Nov. 1929, Holo: A.
RFK Code
Copyright © CSIRO 2020, all rights reserved.