Australian Tropical Rainforest Plants - Online edition

Steganthera laxiflora subsp. lewisensis Whiffin

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

Whiffin, T. (2007) Flora of Australia 2: 454. Type: S.F.R. 143, Kanawarra, Carbine Logging Area, 6 Jun. 1988, B. Hyland13748; Holo: QRS; Iso: LTB.

Common name

Beech, Tetra; Tetra Beech


Seldom exceeding 30 cm dbh. Oak grain in the wood.


Oak grain in the twigs. Leaf blades about 5-10 x 2-3.5 cm. Lateral veins forming loops inside the blade margin. Terminal buds, young shoots and younger leaf bearing twigs clothed in erect brown hairs.


Inflorescence shorter than the leaves. Flowers about 3 mm diam. Tepals small and inconspicuous. Staminal filaments fused to form a short tube. Female flowers operculate. Carpels about 14-18.


Receptacle orange-brown, not very swollen, sparsely pubescent. Fruiting carpels ellipsoid, about 17 x 9 mm. Seed about 12 x 5-6 mm. Embryo about 5 mm long. Cotyledons slightly wider than the radicle.


Cotyledons lanceolate, about 20-24 mm long, 3-veined. At the tenth leaf stage: leaves elliptic to obovate, apex acute or acuminate, base cuneate, hairy on the upper surface, about 5-7 lateral veins each side of the midrib forming loops inside the blade margin; petiole, stem and terminal bud densely clothed in pale brown hairs. Seed germination time 62 days.

Distribution and Ecology

Probably endemic to NEQ, known only from collections in the Mt Spurgeon-Mt Lewis area. Altitudinal range from 1000-1200 m. Grows as an understory tree in mountain rain forest.

Tetrasynandra sp. (Mt Lewis B.P. Hyland 1053), Queensland Vascular Plant Names & Distribution : 193(1993). Tetrasynandra sp. (Mt Lewis B.P. Hyland 1053), Queensland Plants : 120(1997). Tetrasynandra sp. (Mt Lewis BH 1053RFK), Australian Tropical Rain Forest Trees Shrubs & Vines : (2003).
RFK Code
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