Climber 3-8 m long, perennial from woody rootstock, glabrous; dioecious. Tendrils often with adhesive pads. Leaves: petiole 0.5-1 cm long; petiolules 0.2-0.5(-1) cm long, after abscission leaving raised flat scars; blade carnose-leathery (± succulent), wrinkled on drying, 3-foliolate, 5-20 cm diam., leaflets (broadly) ovate-elliptic to oblong-lanceolate, to 12 by 6 cm, glands absent, base rounded or ± narrowed, apex (narrowly) rounded, minutely mucronate, basal veins 3-5, curving towards apex, mostly indistinct. Male inflorescences paniculate, little or much branched, sometimes branched from the base, 10-20(-30) cm long, pendent, glabrous; bracts linear, 1 mm long or less. Female inflorescences paniculate or ± raceme-like, 5-10 cm long. Male flowers (1-)3 subfascicled; pedicel 2-5 mm long; perianth subrotate, c. 5 mm diam., glabrous, minutely papillose; receptacle flattish, faintly 5-saccate, c. 1 mm diam.; sepals lanceolate, c. 2.5 mm long, acuminate; petals (ob)ovate, c. 3 by 1.5 mm, apex acuminate, midvein distinctly raised in lower portion, forming dissepiments between the stamens; filaments free, spreading, c. 1 mm long, anthers less than 0.5 mm long. Female flowers: ovary narrow, c. 8 by 1 mm, glabrous; staminodes 0.2-0.5 mm long; styles short, broad at base, stigma ± lobulate-dentate, style and stigma together c. 1 mm long. Infructescences pendent, 5-10 cm long, with 5-10(-20) fruits. Fruit much narrowed to the base, glabrous, 3(-4) cm long, apex truncate, 0.8(-1) cm wide; fruiting pedicel slender, 1(-1.5) cm long. Seeds 12-15, subtriangular, 6-7 by 3-4 mm, 2-horned at apex, margined, edge smooth or verrucose, faces finely verrucose, wing suberect, 8-10 by 4 mm.
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