Tree to 10(-29) m tall and 10(-60) cm in diam., sometimes treelet 3-6 m tall; buttresses very small. Leaves (l-)3-5(-7)-jugate, subsessile to shortly petioled; petiole and rachis (4.5-)8.5-56 cm long. Leaflets subcoriaceous, elliptic-lanceolate, lanceolate, or oblanceolate 4-30(-50) by 1.5-11 (-20) cm, glabrous; apex acuminate, acute, or obtuse; base cuneate, obtuse, or rounded, rarely subcordate for the lowest pair, symmetric; midrib slightly elevated above, prominent beneath; nerves 6-12 per side; often subsessile, sometimes petiolules up to c. 10 mm. Inflorescences up to 15(-30) cm wide, slightly pubescent or subglabrous, main branches (l-)7-10(-30) cm long, up to c. 3 mm in diam.; bracts usually smaller than the bracteoles, ovate or obovate, 3-12 by 1.5-7 mm, persistent or caducous, puberulous or minutely ciliate on the margin; bracteoles broadly elliptic, ovate, or sometimes obovate, 4-19 by 3-10 mm, glabrous or minutely ciliate on the margin, persistent, sometimes deciduous; pedicels 10 — 15( — 35) mm, the length between bracteoles and flower 3-6 mm. Flowers yellow, orange, pink, pinkish red, fragrant, articulated near the base, puberulous outside. Hypanthium 7-15 (-32) mm long, 0.5-1.5 mm wide at the throat. Calyx lobes ovate, elliptic, or obovate, 6-15 by 3-7 mm. Stamens (3 or) 4 (or 5); filaments 16-38 mm, glabrous; anthers ellipsoid or oblong, c. 0.7 mm long; staminodes absent. Pistil stipitate, free part of stipe 1.5-4 mm, hairy; ovary 2.5-7 mm long, puberulous, 6-8(-10)-ovuled; style 7-20 mm; stigma minute, round. Pods dark brown, oblong or lanceolate, 7-31 by 3-7 cm, up to c. 1.2 cm thick, woody, 6-8-seeded, with straight or curved, up to c. 1 cm long beaked apex, and cuneate or obliquely rounded base, the valves coiling. Seeds ovoid-oblong, c. 4 by 2 cm, and c. 7 mm thick.
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A tree 8-10 m tall. It can be 30 m high. The trunk is 60 cm across. The leaves are 18-50 cm long. There are 4-6 pairs of leaflets. The lowest pair clasp the twig. The leaflets are 9-35 cm long by 3-14 cm wide. They taper to the tip. New leaves appear as purplish-brown soft drooping leaflets. The flower cluster is 5-20 cm wide. The flowers are 13-28 mm across. They are yellow but turn red. They have a purple eyespot. The pod is large and flattened. It is 10-32 cm long by 2.5-6.5 cm wide. It is green. The seeds are thin and flattened. They are 3.5 cm long by 6.5 cm wide.
Can be grown by seedlings. Seeds needs soaking.