Tree or shrub to 20 m high, sparsely puberulous or glabrous in most parts. Leaves: axes with small, circular, ± depressed gland at apex; pinnae 1-jugate; leaflets 1½ (rarely 2½)-jugate, petiolulate, equilaterally elliptic, acute to acuminate with obtuse tip, 2.8–9.5 (–14) cm long, 1.5–6.5 cm wide, with a cuneate base. Inflorescences in upper leaf axils, simple to compound, umbellate, to 9 cm long, ± appressed-puberulous; peduncles 2–4.5 cm long, bearing 6–15-flowered clusters. Flowers white, ± puberulous; calyx tubular, 3.2–5 (–6) mm long; corolla funnel-shaped, (6–) 8–13 mm long. Pod narrowly oblong, curved, 5.5–13 cm long, 9–15 mm wide, ± scarlet outside, brightly orange within, glabrous. Seeds ellipsoid and flattened to subglobular, 9–10 mm long, 7.5–9.5 mm diam., glossy black.
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