Slender shrub or tree up to 7 m. Young parts sometimes rusty pubescent. Leaves 1-foliolate. Petiole 3-6 cm; stipules a narrow wing 3-5 mm wide extending the length of the petiole. Scar narrow, similarly long. Leaflets elliptic to elliptic-oblong, (10-)14-25 (-38) by (3-) 7-10(-13) cm, glabrous, chartaceous to subcoriaceous; pearl glands black, stellate, infrequent; margin shallowly toothed; apex acuminate; base narrowly cuneate to truncate; nerves 10-20 pairs, slightly pubescent. Inflorescences 2-6 cm, condensed, pubescent; bracts deltoid, inconspicuous; peduncle to 1½ cm, main branches usually 3, ultimate branches few-flowered. Flowers 5-merous, greenish yellow. Calyx 4 by 4 mm, lobes 1½ by 2 mm. Corolla tube + staminodial lobes 5 mm; corolla lobes 3½ by 2 mm. Staminodial tube 3-3½ mm; upper free part 2-2½ mm, lobes shallowly retuse, sinuses shallow; upper part ¾-1 mm. Filaments 2 mm, anthers 2 mm. Ovary 4-6-locular, style 3-4 mm. Fruit 10-15 mm ø, reddish orange; seeds usually 6, 8 by 5 mm, rumination outline slightly branched, endosperm simply ruminate.
Primary rain-forest from the lowland up to 1300 m, frequently in riverine forest, occasional in foothill forest, rare in savannah gallery forest.