Climbers, semiwoody or herbaceous. Branchlets terete, with longitudinal ridges; tendrils trifurcate, sometimes apex of one branch with vestiges of abortive inflorescences. Leaves pedately 5-foliolate; stipules brownish, lanceolate or ovate-lanceolate, 3-4.5 × 1-2 mm, membranous, apex acuminate; petiole 5-12 cm; central petiolule 3-5 cm, petiolules of basal leaflets absent or short, petiolules of lateral leaflets complex, 0.8-1.5 cm; leaflets elliptic or ovate-elliptic, 5-17 × 2-9 cm, abaxially light glaucous, adaxially green, pubescent with short grayish hairs, more densely so on veins, to nearly glabrescent, with lateral veins 6-10 pairs, veinlets inconspicuous, base cuneate, or bases of lateral leaflets nearly rounded, margin 20-28-toothed on each side, teeth obtuse or sharp, apex acute or acuminate. Corymbose polychasium axillary; peduncle 2.5-5 cm. Pedicel 2-3 mm. Buds oval, 1.5-2 mm, apex rounded. Calyx shallow and saucer-shaped, with papillose hairs, teeth inconspicuous. Petals oval or ovate-elliptic, 1-1.5 mm, papillose. Anthers oval. Lower part of ovary adnate to disk. Berry globose, 1-1.2 cm in diam., 2-4-seeded. Seeds obovoid-elliptic, base rostrate, apex rounded or retuse, ventral holes obovate-elliptic. Fl. May-Jul, fr. Jul-Sep.
Home