Lianas, woody. Branchlets terete, with longitudinal ridges, glabrous; tendrils unbranched. Leaves 3-foliolate; petiole 8.5-10.5 cm; central petiolule 1.3-1.5 cm, lateral petiolules 0.7-1.5 cm, glabrous; central leaflet obovate-elliptic; lateral leaflets elliptic, 11-15.5 × 4.5-7 cm, glabrous, lateral veins 4 or 5 pairs, veinlets raised, base of central leaflet broadly cuneate, that of lateral leaflets asymmetric and subrounded, margin entire, apex cuspidate. Compound dichasium. Pedicel glabrous. Berry globose, 1-1.5 cm in diam., 1-seeded. Seed elliptic, base rostrate, apex retuse, surface corrugated. Fr. Nov.
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