Australian Tropical Rainforest Plants - Online edition

Sloanea langii F.Muell.

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Flower. © Barry Jago
Leaves and Flowers. © B. Gray
Fruit and dehiscing fruit. © W. T. Cooper
Fruit. © B. Gray
Scale bar 10mm. © CSIRO
10th leaf stage. © CSIRO
Cotyledon stage, epigeal germination. © CSIRO

Mueller, F.J.H. von (1865) Fragmenta Phytographiae Australiae 5: 28. Type: In valli Dalrymples Gap ad sinum Rockinghams Bay. Dallachy.

Common name

Carabeen, White; White Carabeen


Large trees, usually conspicuously buttressed, often with sucker shoots arising from the roots.


Stipules usually toothed or shortly branched. Leaf blade often large about 6-15 x 3-6 cm. About 6-12 lateral veins each side of the midrib.


Sepals about 8-10 x 4-5 mm. Petals ovate, about 8-11 x 4-6 mm. Stamens about 50-90, the outermost sterile or with reduced anther sacs, filaments about 0.5-1 mm long. Ovary about 3 mm long, densely velvety, style about 3 mm long.


Fruits densely clothed (fruit surface not visible between them) in caducous bristles or spines about 4-10 mm long. Fruits usually 3 or 4-valved, about 15 x 12 mm beneath the spines. Seeds about 7-8 x 4 mm, about 75-80% enveloped by the aril.


Cotyledons elliptic, about 12-15 mm long. At the tenth leaf stage: leaf blade obovate, apex acuminate, base auriculate, margin sinuate to crenate, glabrous on the upper surface; petiole glabrous; stipules small, linear, hairy and persistent. Seed germination time 27 to 57 days.

Distribution and Ecology

Endemic to Queensland, occurs in CYP, NEQ and CEQ. Altitudinal range from near sea level to 1150 m. Grows in well developed rain forest on a variety of sites.

Natural History & Notes

Produces a useful general purpose timber.

Wood specific gravity 0.69. Cause et al. (1989).

Echinocarpus langii F.Muell., Fragmenta Phytographiae Australiae 5: 28(1865).
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