Branchlets terete, with longitudinal ridges; tendrils 2- or 3-branched. Leaves compound; petiole 3-10 cm; central leaflet petiolate or sessile, lanceolate or elliptic-lanceolate, 5-13 × 2-4 cm, base nearly rounded, apex acuminate; lateral leaflets sessile, ovate-elliptic or ovate-lanceolate, 4.5-11.5 × 2-4 cm, base asymmetric and nearly truncate, margin with coarse, sharp teeth, leaflets with lateral veins 5-7 pairs, veinlets inconspicuous. Polychasium leaf-opposed; peduncle 2-4 cm. Pedicel 1-2.5 mm. Buds ovoid, 1.5-2.5 mm, apex rounded. Petals ovate-elliptic, 1.3-2.3 mm, glabrous. Anthers oval, nearly square. Disk 5-lobed. Lower part of ovary adnate to disk. Berry globose, ca. 8 mm in diam., 2- or 3-seeded. Seeds obovoid, apex rounded. Fl. May-Aug, fr. Jul-Nov.

● Forests, shrublands, hillsides, valleys, fields; below 100-2700 m. Chongqing, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Henan, Hubei, Jiangsu, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Sichuan, Yunnan.