Leaves: rhachis clothed like the young branchlets, not hooked or clawed at the ends; pinnae 3-7 pairs; leaflets (4)7-13(17) pairs, somewhat asymmetric, 11-55 x 6-29(32) mm., ovate-to obovate-elliptic or ovate-oblong, rounded to subacute at the apex, glabrous to ± crisped-pubescent on both surfaces.
Tree (3)9-20 m. high, deciduous and usually flowering when quite leafless; trunk smooth except at the base where burned, with old bark peeling off in brown papery pieces, the young bark creamy-white to ochre-yellow or yellow-green; crown flat or rounded; young branchlets glabrous to pubescent.
Flowers white, usually produced before the young leaves, sessile or up to 1 mm. pedicellate; bracteoles spathulate, c. 2 mm. long, already fallen when the flowers open.
Calyx 4-6 mm. long, sometimes slit unilaterally, densely brown-tomentellous on the lobes; tube glabrous to ± pubescent, occasionally with sessile glands.
Corolla pale-green, 7-11 mm. long, ± brown-tomentellous on the lobes; tube glabrous to ± pubescent, occasionally with sessile glands.
Staminal tube not or scarcely exserted beyond the corolla; filaments 1.5-4 cm. long, white below, greenish-white near the apex.
Pod dehiscent, 10-35 x 2.5-5.2 cm., oblong, glabrous, brown, ± glossy, not or only obscurely venose.
Seeds c. 10-17 x 8-13 mm., flattened.