Stem glabrous or slightly puberulent. Leaves membranous; petiole 3-6 cm, glabrous; leaflets obovate-oblong, glabrous, median leaflets 4-6 × 1.5-2 cm, lateral leaflets shorter, base attenuate, margin crenate-dentate, apex acuminate or acute; petiolules 3-9 cm. Tendrils slender, 2-fid. Plants monoecious. Male flowers in racemes or panicles; rachis slender, flexuous, 10-30 cm, glabrous; pedicels capillary-like, often fasciculate, 1-3 mm, with bracteoles at base; calyx segments narrowly ovate, 1-1.5 mm, acute; corolla segments ovate-lanceolate, 2.5-3 × ca. 1 mm, 3-veined, entire or indistinctly dentate. Female flowers in panicles 5-12 cm, or fascicled in axils of leaves; pedicels filiform, reflexed; bracteoles subulate; ovary funnelform. Fruit pale green, turbinate, 12-16 × 8-11 mm, apex truncate, 3-longitudinally dehiscent, 1-3-seeded. Seeds dark brown, oblong, 7(-12) × 3-4 mm, 1-2 mm thick, verrucose, base acute, margin dentate, apex truncate.
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A pumpkin family herb. The stems can be slightly hairy. The leaves have leaflets. The middle leaflet is 4-6 cm long by 1.5-2 cm wide. The side leaflets are shorter. The fruit are pale green and shaped like a top. They are 12-16 mm long by 8-11 mm wide.
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