Tree to 20 m, to 25 cm diam. and clear buttressed bole to 15 m. Bark smooth; inner bark yellow to white; sapwood yellow. Leafy twigs soon glabrous, adpressed pilose at apices. Leaves to 27 cm; petiole 4–5 cm, sparsely pubescent to glabrous. Leaflets 1 or 2 on each side, the leaves thus largely trifoliolate, 8–15 by 3–6.5 cm, the most apical usually the largest (to 18 by 7 cm), oblong-elliptic, chartaceous to subcoriaceous, glabrous; apex acuminate, acumen to 18 mm long; base cuneate; major veins c. 7 on each side, arcuate, frequently with small domatia in their axils, secondary veins less con-spicuous; petiolules c. 5 mm, sulcate, swollen at base. Spikes to 8 cm long or basally branched panicles with 2 or 3 branches to 8 cm long; peduncles more or less pilose especially in high altitude specimens; bracts 1 mm long, triangular, pilose. Calyx lobes c. 1.5 mm long, more or less pilose, margin ciliate. Petals 4–5 mm long, ovate. Fruits to 5 cm long, depressed-globose when young, obovoid with apical depression and 5 ribs when mature, sericeous, yellow.
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