Branchlets conspicuously quadrangular; tendrils 4-7-branched, with young apex expanded as tubercles. Leaves palmately 5-foliolate; petiole 2.5-8 cm, petiolule 0.3-1.5 cm, glabrous; leaflets obovate, obovate-elliptic, or broadly obovate-lanceolate, 3-10 × 1.5-5 cm, lateral veins 3-6(or 7) pairs, veinlets slightly raised abaxially, inconspicuous adaxially, base cuneate, margin 2-5(or 6)-toothed, apex acute, acuminate, or obtuse. Paniculate polychasium pseudoterminal, usually with a conspicuous rachis and degenerative leaflets; peduncle 1.5-9 cm, glabrous. Pedicel 0.5-1.5 mm, glabrous. Buds elliptic or globose, 1-2.2 mm, glabrous, apex rounded. Calyx entire. Petals elliptic, 0.8-2 mm, glabrous. Filaments 0.7-0.9 mm; anthers elliptic, 0.9-1.1 mm. Disk inconspicuous. Ovary ovoid-elliptic; stigma inconspicuous or slightly expanded. Berry 8-10 mm in diam., 1-3-seeded. Seeds obovoid, base rostrate, apex rounded. Fl. May-Jul, fr. Aug-Oct.
Can be grown by cuttings. Seeds needs soaking.
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