Glabrous shrub or tree to 30 m high; bark corky, scaly or smooth. Leaves: axes often with flat or depressed gland near base or to middle; pinnae 1-jugate with eglandular axes; leaflets sessile or with petiolules to 2 mm long, 1.5–3-jugate, ovate, lanceolate-elliptic to elliptic, acute or apiculate, 4.5–18 (–21) cm long, 2–9.5 cm wide, strongly inequilateral basally. Inflorescences terminal, 5–14 cm long. Flowers white, subsessile in pedunculate, capitate clusters of 10–25, (4-) 5-merous; calyx cylindric, 2–6.5 mm long; corolla slender, funnel-shaped, (7.5–) 11–26 mm long. Pod strongly curved, woody, to 11 cm long and 15 mm wide, carmine-red outside, bright orange inside, glabrous. Seeds oblongoid to widely ellipsoidal, 8–14 mm long, black, semi-glossy.
Grows in coastal rainforest and monsoon forest, often along streams, in soils derived from granite and basalt (loam, red-clay loam etc.).
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