Lianas, woody. Stem flat. Branchlets terete, with longitudinal ridges, glabrous. Leaves pedately 7-foliolate; petiole 12-15 cm; central petiolule 2.5-4 cm, petiolules of lateral leaflet complex ca. as long as central petiolule, lateral petiolules short, glabrous; leaflets elliptic-lanceolate or elliptic, 5-18 × 3-7 cm, glabrous, lateral veins 4-9 pairs, veinlets raised, base cuneate, base of lateral leaflets asymmetric, margin undulate with 4-10 fine teeth on each side, apex acuminate or cuspidate. Inflorescence umbelliform, axillary; peduncle 1-1.5 cm, pubescent. Pedicel 2-4 mm, pubescent. Buds ovoid-coniform, 2.6-3 mm, upper middle constricted, apex rounded. Calyx saucer-shaped, papillose, margin undulately lobed. Petals 4, ovate-elliptic, 2.5-2.8 mm, apex galeate, papillose. Disk thin in female flowers. Ovary coniform; style inconspicuous; stigma 4-lobed. Berry brown-yellow, spheroid, 2.5-3 cm in diam., 1-or 2-seeded. Seeds elliptic, base obtuse, apex retuse, ventral holes furrowed, parallel at lower portion, tapering from middle to apex. Fl. Mar, fr. Jul-Nov.
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