Trees to 10 m tall. Branches and winter buds glabrous. Petiole 1.2--1.4 cm, apically narrowly winged; leaf blade elliptic to oblong, 7--15 X 3--5.5 cm, papery, glabrous, abaxially drying gray green with dark veinlets, adaxially brown, base cuneate and decurrent into a winged petiole, apex acute, lateral veins 5--7 per side, slender, and ± conspicuous on both surfaces, reticulate veinlets flat and clearly defined. Male flowers in 3-flowered cymes; peduncle, pedicel, and calyx with short rusty appressed hairs; calyx lobes 4; corolla subglabrous, lobes twisted and with a ciliate margin; stamens 14. Female flowers not seen. Fruit solitary. Fruiting pedicel ca. 2 mm. Fruiting calyx 2--3 cm in diam., divided to below middle, ± spreading, appressed rusty pubescent; lobes 4, ovate, 1.2--1.5 X ca. 1 cm, apex subacute. Berries globose, ca. 2.5 cm in diam. Seeds oblong, ca. 12 X 6 mm. Fl. May, fr. Sep.

* Mixed forests, by streams in valleys; 800--1700 m. SE Yunnan