Trees to 15 m tall. Branches tawny pubescent when young, gray lenticellate with age. Petiole ca. 1 cm, robust, transversely striate, tawny pubescent; leaf blade oblong to elliptic-oblong, 18-28 × 5-8.5 cm, thinly leathery, glabrous except for pubescent midvein and secondary veins, secondary veins 15-18 on each side of midvein, prominent on both surfaces and pubescent, base truncate, shallowly cordate, or sometimes rounded, apex acute. Inflorescences axillary, several flowered. Pedicel ca. 2.5 cm, pubescent. Sepals broadly ovate, 3.5-4 mm, outside pubescent, inside glabrous. Petals green, linear-oblong, ca. 3 cm × 4 mm, glabrous. Ovules 2 per carpel. Fruiting pedicel 2-7 cm, robust; monocarp stipes 3-5 cm, glabrous; monocarps oblong-ellipsoid, 2.5-4 × ca. 1.8 cm, glabrous. Seed 1 per monocarp. Fl. Apr-Jul, fr. Aug-Feb.

Densely forested slopes; 600-1100 m. S and SW Yunnan [Thailand].