Tree (or shrub), 4.5-10(-26) m high; bole to 14 m high, 40 cm in diameter. Branchlets terete or ± angular in the distal part, yellowish grey to light brown, glabrous. Leaves: rachis 1.5-7.5 cm, glabrous, gland broadly to narrowly elliptic, flat or slightly cushion-shaped, often ± raised, 2-9 mm; pinnae 1 pair, 3.5-13.5 cm, glabrous; petiolules 2-7 mm, glabrous; leaflets 2 (or 3) pairs per pinna, opposite, coriaceous or chartaceous, drying grey-green or brown, ± equal-sided, ovate-elliptic to obovate-elliptic (or lanceolate), (4-)7.5-18 by (2.5-)4.5-8.5 cm, base symmetrically rounded or broadly cuneate, apex obtusely acuminate-caudate, both surfaces glabrous; principal lateral veins (1-) 2-3(-4) per leaflet-half, non parallel, strongly arching, issuing from the lower half of the main vein; reticulation lax, prominulous above, prominent beneath. Inflorescences terminal or ramiflor-ous below the leaves, scarcely puberulous, glabrescent, consisting of pedunculate glomerules aggregated into panicles, 30 by 35 cm; glomerules consisting of 2 or 3 sessile or subsessile flowers; pedicel less than 1 mm; floral bracts ovate, obtuse or obscurely dentate, c. 1 mm, glabrous. Flowers pentamerous, bisexual. Calyx green, cup-shaped or campanulate, (1.5-)2.4-4.5 mm, glabrous; teeth deltoid, irregular, acute, 0.1-0.8 mm. Corolla yellowish green or white, funnel-shaped, 6-10 mm, glabrous; lobes elliptic, acute, (2.5-)3-4 mm. Stamens white, c. 25 mm, tube equalling or shorter than the corolla-tube. Ovary solitary, glabrous. Pod red or brownish outside, reddish orange within, curved into a circle 6-10 cm in diameter, valves 2.5-3.5 cm wide, coriaceous-chartaceous, not sinuate, glabrous, veins inconspicuous, dehiscing first along the ventral suture. Seeds bluish black, ellipsoid, slightly flattened, c. 15 by 10 mm.