Tree to 12 m high; bark smooth, yellowish to grey; young branchlets glabrous or subglabrous. Leaves glabrous or sub-glabrous to sparingly puberulous: petiole 5—8,5 cm long, with a large slightly raised elongated gland up to 11 mm long situated a short distance above the pulvinus; rhachis 3,5-13 cm long; pinnae 2-4 pairs; rhachillae 7-19(24) cm long; leaflets 5-11 pairs, 15-60 X 8-21 mm, obliquely oblong, elliptic-oblong or obovate, apex obtuse or rounded, often somewhat emarginate, upper surface very sparingly appressed-pubescent, lower surface paler, appressed-pubescent. Inflorescences globose, in axillary or terminal panicles; peduncles glabrous or sparingly puberulous. Flowers whitish, sessile or almost so; bracteoles rapidly deciduous. Calyx 2-3 mm long, glabrous or almost so. Corolla 4-6 mm long, apices of lobes with a conspicuous tuft of hairs. Stamens up to 1,5 cm long, united basally, tube not or scarcely exserted beyond the corolla. Ovary glabrous. Pods light to dark brown, 8-16 X 1,5-2 cm, linear-oblong, acuminate apically,