Branchlets terete, with longitudinal ridges; tendrils 2- or 3-branched. Leaves simple, 3-5-cleft, usually mixed with some undivided leaves; petiole 1-7 cm; leaf blade 3.5-14 × 3-11 cm, basal veins 5, lateral veins 4 or 5 pairs, veinlets inconspicuously raised, base cordate, notches nearly obtuse, rarely rounded, margin with acute teeth, apex acute. Peduncle 1-2.5 cm. Pedicel 1-3 mm. Buds ovoid, 1-2 mm, apex rounded. Petals ovate-elliptic, 0.8-1.8 mm. Anthers narrowly elliptic. Lower part of ovary adnate to disk; style slightly enlarged at base. Berry 5-8 mm in diam., 2-4-seeded. Seed narrowly elliptic.