Description from Flora of China
Shrubs or trees, to 4 m tall. Young branches grayish brown; current year branchlets brown, slightly ribbed, glabrous; terminal buds long conic, 1.2-1.5 cm, glabrous. Petiole 1-1.2 cm, glabrous; leaf blade ovate to obovate-oblong, 3-8 × 1.5-3.5 cm, leathery, abaxially pale green to yellowish green, adaxially dark green and shiny, both surfaces glabrous, midvein abaxially elevated and adaxially level, secondary veins 11-13 on each side of midvein, abaxially slightly visible, and adaxially obscure, base cuneate, margin entire and slightly revolute when dry,
apex obtuse. Flowers axillary, usually solitary, rarely 3 in a cluster. Pedicel 1.5-2.5 cm, glabrous; bracteoles caducous. Sepals caducous, orbicular, 2-3 mm in diam., outside glabrous, margin ciliolate, apex rounded. Petals white, obovate to obovate-orbicular, 5-6 × ca. 5 mm. Stamens ca. 25; anthers ovate, ca. 1 mm, with filiform trichomes. Ovary ovoid, 2-loculed with more than 10 ovules per locule; style 2-3 mm, apically 2-lobed. Fruit oblong to obconic, with more than 10 seeds per locule, 1-1.8 × 0.6-1 cm, apex acuminate; pedicel 1.8-2.8 cm. Seeds brown, compressed globose, ca. 2 mm in diam., shiny. Fl. May-Jun, fr. Aug-Sep.
Dense forests on mountain slopes or tops. S Guangxi [N Vietnam].