Leaves: papery, broadly ovate or heart-shaped, 5-11 centimeters long, 4-10 centimeters wide, apex short acute, base heart-shaped, veins palmate, 5-7; petiole 1-3 centimeters long.

Flowers: umbels axillary, usually solitary, with about 20 flowers; inflorescence stalks 2-3 centimeters long, petioles slender, about 1 centimeter long, both slightly elongated and thick when fruiting; bracts absent, perianths 3-4 millimeters long; stamens shorter, filaments knotted into a column with 3 sessile anthers.

Fruit: berry 6-8 mm wide, purple-black, with 1-2 seeds. Flowering: summer months.

Newspaper 7: 87. 1936.

Climbing shrub, glabrous; branchlets with obtuse ridges. Leaves papery, ovate, ovate-lanceolate or subcordate, 6-20 cm long, 2.5-12 cm wide, apex acuminate or shortly acuminate, mucronate, base subcordate, primary veins 5-7, marginal 2 to apical confluence with margin, tertiary veins reticulate, conspicuous on both surfaces; petiole 1-3 cm long, with tendrils and narrow sheaths in lower 1/3-1/4. Umbels with 20-50 flowers, borne in leaf axils or in brown bracts; common pedicel compressed, 1-3 cm long; receptacle globose, 2-4 mm in diameter; pedicel slender, 2-7 mm long; male flowers: perianth tube torulose or narrowly obovate, 3.5-4.5 mm long, with 3 obtuse teeth apically; stamens 3, ca. 2/3 as long as perianth, filaments ca. half as long as united into a column, anthers 1/2 as strong as filaments. Female flowers: perianth tube ovate, 2.5-3 mm, with 3 staminodes, ovary ovate, stigma 3-lobed. Berry globose and slightly compressed, 5-10 mm long, 6-10 mm wide, black when ripe. Black when ripe. Flowering June-August, fruiting July-November.