Shrubs dioecious, tufted, to 1 m tall, rarely more. Branchlets slender, glabrous, unarmed. Buds brown, ovoid, 3-4 mm, glabrous, apex acute. Petiole 5-10 mm, glabrous; leaf blade suborbicular to ovate, 1-2 cm, glabrous, rarely adaxially sparsely glandular hairy, base truncate to shallowly cordate; lobes 3, triangular-ovate, margin coarsely obtusely dentate, apex obtuse or acute; terminal lobe slightly longer than lateral ones. Male racemes 1.5-3.5 cm, 7-10-flowered, female ones shorter and fewer flowered; rachis and pedicels sparsely glandular pubescent; bracts oblong or elliptic, 3-5 × 1-2 mm, glabrous or margin sparsely stalked glandular. Pedicel 2-4 mm. Calyx purple, glabrous; tube cupular, 2-3 mm; lobes erect to spreading, rarely reflexed, ovate, 1.5-2.5 mm. Petals subflabellate to subobovate, very small. Stamens slightly longer than petals. Ovary glabrous. Style 2-lobed. Fruit red, globose, 0.5-0.7 cm, glabrous. Fl. May-Jun, fr. Jul-Aug.

* Forests by roadsides, thickets on mountain slopes; 1000-3300 m. Sichuan.