Castanospermum australe —Black Bean, Moreton Bay Chestnut—FABACEAE subfamily FABOIDEAE

Castanospermum australe

Link to Images on Flickr.

Habitat—Widespread in warmer rainforest, especially along rivers.

Distribution— North from the Orara River on the North Coast of New South Wales and Queensland.

Description—Tree, up to 35 m high with trunk up to 1.5 m diam., but usually smaller, mostly glabrous.

Local occurrences

Bennett Head, Brown's Creek Bicentennial Gardens, Forster/Tuncurry Streets, Great Lakes College-Forster Campus, Pebbly Beach, Royal Botanic Gardens Sydney, Stephen Street Reserve and Wingham Brush.

Leaves.— Compound, leaflets 13 to 50, no oil dots, margins entire, domatia present but sometimes inconspicuous; 30 to 60 cm long; leaflets 9 to 17, ± oblong-elliptic, 7 to 20 cm long, 3 to 5 cm wide, apex acuminate, margins entire, glabrous, upper surface glossy, lower surface paler and dull; petiole 3 to 6 cm long; lateral petiolules 2 to 5 mm long.

Castanospermum australe
Castanospermum australe Castanospermum australe
Castanospermum australe

Inflorescence—Racemes mostly 5 to 15 cm long; pedicels 20 to 35 mm long. Calyx c. 10 mm long. Corolla 30 to 40 mm long, orange to red.

Flowering.—November to December

Fruit—Pod mostly 10 to 20 cm long, 4 to 6 cm diam., glabrous; seeds 1 to 5, c. 30 mm diam., brown.

Ripe.—May to June.

Castanospermum australe