Tree to 8 m high. Leaves opposite, 3-foliolate; leaflets petiolulate, the lamina broadly obovoid to orbicular, (4–) 7–12 cm long, (4–) 7–9 cm wide, basally acute to abruptly attenuate, emarginate. Inflorescence axillary, 2–5 cm long, few-to many-flowered. Flower functionally unisexual. Sepals triangular, 0.5–1 mm long, finely puberulous, basally shortly connate. Petals narrowly lanceolate, 2–2.5 mm long, erect, ± cucullate, finely puberulent outside, green; upper margins slightly revolute. Functionally male flowers not seen. Functionally female flowers: stamens c. 1 mm long; ovary puberulous; style c. 0.5 mm long; stigma capitate, slightly lobed. Follicles 4, oblong, flattened-globose, 5–6 mm long. Seeds globose, slightly flattened, c. 4 mm long, black.