Description from Flora of China
Trees. Leaves spirally arranged, usually closely clustered at apex of branchlets; stipules persistent; petioles usually thickened at base. Inflorescences axillary, clustered. Sepals (4 or)5(or 6), ovate. Corolla pale yellow, 7--16-lobed. Stamens (10--)16--40(--90) in 1 or 2 whorls, inserted in throat, sometimes all becoming petal-like staminodes. Ovary glabrous or pubescent, 5--14-locular; disc present or absent. Style short, truncate. Fruit a berry, 1--3(--5)-seeded. Seeds large with a broad scar; seed coat thin to thick, woody to crusty.
About 10 species: Bhutan, Cambodia, India, Indonesia, Myanmar, Nepal, Philippines, Thailand; two species in China.