Branchlets brownish or gray-brownish, terete, with many lenticels, glabrous; tendrils bifurcate. Leaves subleathery, palmately 5-foliolate; petiole 3-6 cm; petiolules 0.2-1.2 cm, glabrous, central petiolule longer than lateral ones; leaflets obovate-lanceolate or obovate-elliptic, 5-9 × 2-4 cm, glabrous, abaxially usually glaucous, veinlets conspicuously raised when dry, lateral veins 6-9 pairs, base cuneate, margin 2-5-toothed on each side, rarely teeth inconspicuous, apex acute, shortly acuminate, or obtuse. Compound dichasium leaf-opposed, glaucous, glabrous; peduncles 1.5-2 cm. Pedicels 3-6 mm. Buds elliptic, 2-3.5 mm. Petals 5, ca. 3 mm. Filaments 3-3.8 mm; anthers yellow, elliptic, ca. 2 mm. Pistil 2-2.5 mm; style attenuate. Berry 1.5-2.5 cm in diam., amaranthine, sweet and sour in taste. Seed slightly flattened, 6-8 × ca. 5 mm. Fl. May-Jul, fr. Oct-Dec.
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