Pod apparently indehiscent, 15-32 x (3)3·8-7 cm., oblong, ± puberulous, crimson near maturity, turning brown with age, typically (though apparently not in our area) with very prominent transverse veins much raised, particularly in the centre, sometimes almost wing-like, and anastomosing.
Leaves: rhachis clothed like the branchlets, not hooked or clawed at the end; pinnae 3-6(10) pairs; leaflets 8-17 pairs, 7-15(17) x (3)4-8 mm., rounded at apex, oblong-elliptic, slightly oblique, beneath paler, ± glaucous and appressed-puberulous (occasionally glabrous or nearly so).
Tree 6-15 m. high; crown flat, spreading; bark smooth, finely fissured, grey to grey-brown; young branchlets sparsely to densely rusty-puberulous or-pubescent, sometimes nearly glabrous; indumentum going grey with age.
Heads often aggregated on short leafless branches; pedicels 0-1 mm. long; bracteoles very minute, but sometimes present when the flowers open.
Staminal tube not or scarcely exserted beyond the corolla; filaments 0·7-1·3 cm. long.
Calyx 1-2·5 mm. long, densely rusty-puberulous outside, not slit unilaterally.
Corolla 3·5-5 mm. long, densely rusty-puberulous outside.
Seeds c. 10 x 7 mm., flattened.
Flowers white or pink.