Monoecious, tendriled vines; stemns 5-to 10-sulcate, pubescent to glabrate. Leaves simple, the blade broadly ovate to suborbicular in outline, 3-lobate, 10-20 cm long, 9-18 cm wide, the apex acuminate, the base deeply cordate, the margin minutely and remotely denticulate, chartaceous, 3-veined, the upper and the lower surfaces densely to sparsely pubescent on the veins; petiole 3-7 cm long, slender, pubescent to glabrate; tendrils 2-branched. Staminate flowers 1-3 in the axils of the leaves; calyx cup-shaped, puberulent, 5-lobate, the lobes linear lanceolate, 2-4 cm long; corolla white, campanulate, ca. 1.5 cm long, the lobes lanceolate, the outer surface puberulent, the inner surface tomentose; stamens 3, the filaments free except where adnate to the hypanthium wall at the base, short, glabrous, the anthers basally and apically replicate, 2 anthers unilocular, 1 anther bilocular. Pistillate flowers not seen. Fruit red or reddish orange, the pulp white, subglobose or ellipsoid, indehiscent, baccate, 3-4 cm in diameter, the surface lustrous, smooth or nearly so, 3-carpellate, the peduncle 6-14 cm long; seeds 6-19, erect, narrowly triangular, the apex acute, the base 3-cornuate, 12-15 mm long, 6-8 mm wide at the base, compressed, black or brown, slightly roughened.
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