Trees 7-18 m tall, evergreen. Young branchlets dark brown, wrinkled, 4-6 mm thick, pubescent, glabrescent, with scattered lenticels. Petiole 1.5-4 cm; leaf blade elliptic to elliptic-ovate, 4-24 × (1.5-)5-10 cm, leathery, abaxially brownish red to pale white and pubescent, adaxially blackish green, shiny, and glabrous but midvein with scattered white pubescence, base broadly cuneate to rounded and ± asymmetric, margin entire, apex caudate; veins abaxially prominent, secondary veins 7-11(-15) on each side of midvein and curved, tertiary veins numerous and parallel. Inflorescences axillary, solitary. Male inflorescences obovoid, ca. 2.5 × 1.4 cm, tuberculate, with short rust-colored pubescence; peduncle 1-1.5 cm, thick. Fruiting syncarp green, blackish brown when dry, ± globose, ca. 12 cm in diam., sparsely tuberculate or smooth, pubescence pale red and short; peduncle 1-3 cm, thick.

* Moist forests; 1400-1700 m. S Yunnan (Xishuangbanna).