Generally a slender twining vine; stems, petioles, and lower surface of leaves loosely pubescent with long and sericeous or short and puberulent trichomes, the upper leaf surface glabrate or sparsely pubescent. Leaves obscurely peltate; petioles 3.5-7 cm long, slender; blades broadly ovate, usually obtuse and mucronate at apex, truncate to cordate at base, 2-12 cm long and wide; venation palmate. Staminate inflorescences lacy and branched many times, usually axillary, often at leafless nodes; bracts less than 1 cm long; flowers greenish, ca 3 mm diam; sepals 4, much longer than the cone-shaped corolla; stamens united, the apex flaring; anthers 4. Pistillate flowers fasciculate along axillary branches, the branches often several at a node, the fascicles each subtended by a small, ovate or reniform, leaflike bract; sepals and petals each 1 per flower, caducous, borne at the gibbous base of the carpel; carpel 1, densely pubescent; stigma deeply trilobate. Drupes suborbicular, +/- flattened, red, 4-5 mm long, pubescent; seed brown, flattened, verrucose, 3-4 mm long, the embryo horseshoe-shaped. Croat 4397, 11997.