Australian Tropical Rainforest Plants - Online edition

Backhousia bancroftii F.M.Bailey

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Flower. © Barry Jago
Flower. © Barry Jago
Flowers [not vouchered]. © G. Sankowsky
Leaves and flowers [not vouchered]. © G. Sankowsky
Scale bar 10mm. © CSIRO
10th leaf stage. © CSIRO
Cotyledon stage, epigeal germination. © CSIRO

Bailey, F.M. (1886) A Synopsis of the Queensland Flora, Supplement 1 : 24. Type: Johnstone River.

Common name

Johnstone River Hardwood; Langdon's Hardwood


Pale brown, hard, brittle stripes in the blaze.


Oil dots visible with a lens if not visible to the naked eye. Leaf blades about 55-95 x 25-50 mm. Midrib depressed on the upper surface of the leaf blade. About 9-15 main lateral veins forming loops or an intramarginal vein well inside the margin, sometimes with another smaller vein further out. Younger leaf bearing twigs 4-angled or shortly 4-winged.


Petals about 5 mm long. Anthers about 0.6-0.8 mm long.


Fruits about 5-7 mm diam., excluding the calyx lobes.


Cotyledons attenuate at the base, about 7-9 mm wide, oil dots small. At the tenth leaf stage: leaf blade narrowly elliptic to narrowly ovate, tapering to a fine acuminate apex. Seed germination time 16 to 48 days.

Distribution and Ecology

Endemic to NEQ, restricted to the area between Cooktown and Innisfail. Altitudinal range from sea level to 700 m. Grows in well developed rain forest, at times forming almost pure, even aged stands, particularly in the Johnstone River catchment.

Natural History & Notes

Produces a useful general purpose construction timber.

Wood specific gravity 1.00. Cause et al. (1989).

RFK Code
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