Description from Flora of China
Shrubs dioecious, 1-3 m tall. Branchlets reddish brown to brownish, stout, glabrous or slightly glandular hairy. Buds reddish brown, ovoid, 4-6 mm, apex acute; scales glabrous or puberulent at margin. Petiole 3-5 cm, glabrous, pubescent, or sparsely glandular hairy; leaf blade broadly ovate to suborbicular, 5-9 × 4-9 cm, sparsely glandular hairy, rarely pubescent, base cordate, rarely subtruncate; lobes 3-5, margin irregularly deeply doubly serrate; terminal lobe triangular-ovate, longer than lateral ones, apex acuminate; lateral lobes acute or shortly acuminate at apex. Male racemes erect, 6-10 cm, female ones robust, shorter; rachis and pedicels pubescent and shortly glandular hairy; bracts lanceolate, 4-7 mm, 1-veined, margin coarsely glandular hairy or ciliate. Pedicel 3-5 mm. Calyx reddish brown, sparsely pubescent; tube cupular to pelviform, 1.5-2.5 mm; lobes erect or spreading in fruit, ligulate to oblong, 2-3 mm, 3-veined. Petals subflabellate or cuneate-orbicular, smaller than calyx lobes. Stamens exserted. Ovary obovoid, glabrous or sparsely pubescent. Style 2-lobed at apex. Fruit yellowish green turning reddish brown, ovoid to globose, 0.5-0.7 cm in diam., glabrous or pubescent. Fl. Apr-May, fr. Jul-Aug.
Forests or thickets on slopes or in mountain valleys, river banks in mountain valleys, roadsides; 1400-4000 m. SE Gansu, E Guizhou, SW Shaanxi, Sichuan, Xizang, Yunnan [Bhutan, N India, Kashmir, Myanmar, Nepal, Sikkim].