Shrub or tree 3-25 m high, up to 30 cm dhb when 12 m high. Twigs glabrous. Leaves simple or trifoliolate; total length up to 19 cm in trifoliolate leaves, including petiole of 1-4 cm; petiole subterete, slightly flattened or channelled on adaxial side, glabrous or puberulent; leaf(let) blades coriaceous, glabrous on both surfaces, elliptic to obovate; in trifoliolate leaves, lateral leaflets 4.5-11.5 by 1.6-3.4 cm, base shortly attenuate, apex acute or acuminate; apical leaflet 6-15.5 by 2.4-6 cm, base long-attenuate (constricted region up to 1.7 cm long), apex acute or acuminate; unifoliolate leaves 4.5-13 by 1.7-6.5 cm, base attenuate (constricted region 0.6-1.5 cm long); margin sometimes minutely thickened and revolute, crenate, 11-15 notches on each side of a leaflet; midrib sometimes slightly depressed above, prominent beneath, glabrous, secondary and tertiary venation flat or raised above and raised beneath. Stipules suborbicular, up to 1.5 by 1.7 cm. Inflorescence usually 4 dyads or tetrads, sometimes a few successive nodes flowering simultaneously; peduncles 0.3-1.3(-3) cm long, puberulent; axes of racemes up to 12 cm long, puberulent. Flowers unisexual and plants dioecious; pedicel 1-1.7 mm long, puberulent; calyx lobes 0.6-1 by 0.6-0.8 mm, glabrous on outer surface, ciliate; petals obovate, apex rounded, 1-1.4 by 0.7-0.9 mm; disc lobes 0.3-0.4 mm long, broadly oblong; in male flowers: filaments 2.7-3.2 mm long, ovary c. 0.5 mm long, pubescent, styles 0.1-0.2 mm long, incurved; in female flowers: filaments 0.9-1.7 mm long, ovary 1.1-1.4 mm long, pubescent, styles 1.3-1.9 mm long, straight, stigmas capitate, papillose. Capsule with valves 2-2.5 by 1.3-1.5 mm at dehiscence; exocarp pubescent or densely so; calyx lobes usually but not always persistent. Seeds 0.8-0.9 mm long, comose at both ends, the hairs to c. 1 mm long.