Trees glabrous. Branchlets thick, wrinkled, obtusely angular; pith solid. Petiole subterete to terete, (1.5-)2-3 cm; leaf blade broadly obovate or elliptic, 15-24 × 7-14 cm, leathery, glabrous, base rounded or broadly obtuse, margin crenulate with sharp teeth, apex cuspidate; veins prominently raised on both surfaces, densely and minutely pustulate, scabrous especially adaxially; lateral veins ca. 10 on each side of midrib, running into marginal vein. Inflorescences axillary, contorted racemes appearing glomerate, shorter than petiole. Flowers unknown. Pedicel ca. 2.5 cm in fruit. Fruit ovoid, ca. 5 mm in diam., punctate-lineate, pustulate; persistent calyx lobes triangular, meeting at fruit apex. Fr. Jun.

* Broad-leaved forests, valleys; 200-400 m. S Yunnan [Vietnam].