Small or medium-sized tree to 19 m high; 30 cm d.b.h. Branches glabrous or with a few scattered glandular hairs. Stipules not seen. Leaves: rachis 10-21 cm, slightly laterally compressed, distincdy adaxially sulcate, glabrous; pinnae 2 or 3 (or 4) pairs, angular, glabrous, (3—)5—15 cm; petiole 1-2 mm, glabrous; leaflets (3-)4-6 on each side of the pinna, thinly chartaceous, drying dull lead-grey to green above and light green beneath, unequal-sided, elliptic to ovate-elliptic, 1.5-5 by 0.9-3 cm, base ± symmetrical, (very) broadly cuneate to rounded, apex rounded-mucronulate to truncate-emarginate, both surfaces glabrous or upper surface glabrous(-puberulous) and lower appressed puberulous (a few specimens with pellucid dots), lateral veins prominulous, 5-9 at each side of the leaflet, slightly arching, not parallel, anastomosing near the margin. Racemes (incl. peduncle) 10-15 cm long, glabrous or with a few scattered hairs and glands only; bracts filiform, puberulous, (early) caducous, c. 0.5 mm; pedicel l(-3) mm, glabrous or with a few scattered hairs only. Calyx broadly funnel-shaped to subrotate, c. 0.5 mm, glabrous; teeth deltoid, acute, about 0.2 mm long. Petals lanceolate, acute, 2.4-3.5 mm, glabrous. Stamens 4 mm; anthers c. 0.5 mm. Ovary sessile, c. 3 mm, glabrous; style 0.6-0.7 mm. Pod dark brown, strap-shaped, usually falcate prior to dehiscence, and spirally contorted after, often slightly constricted between the seeds, 10-18 by 0.9-2 cm. Seeds usually 10 or 11 per pod, glossy red with a black spot covering the distal 2-3 mm, ± irregularly obovoid-ellipsoid, biconvex, 6-8 by 5-6 by 3-4 mm, areole c. 5 by 4 mm, open towards the hilum, not parallel to the margin.
Can be grown by seedlings. Seeds needs soaking.