Trees (3–)15–30 m tall; young branches slightly pubescent, glabrescent, older growth lenticellate. Stipules linear, 2–5 mm, caducous; petiole 1–2 cm, glabrous; leaf blade usually oblong, 6–15 × 3–7 cm, leathery, abaxially glabrous, base cuneate, sometimes subrounded, margin serrate, apex acute; lateral veins 6–9 on each side, prominent on both surfaces. Male inflorescences ellipsoid, ca. 1 cm, several arranged in panicle; bracts 4, ovate, ca. 15 mm. Female inflorescences usually in racemes, 16–24-flowered. Peduncle 3–4 cm in fruit, pubescent. Male flowers: stamens sessile. Female flowers: staminode teeth scalelike; styles 3–4 mm, brown-pubescent. Infructescences subglobose, 1.5–2.5 cm wide. Seeds angular. Fl. Mar–May, fr. May–Jul.

Forests; ca. 1000 m. SE Yunnan.