Twiner with more or less slender, sparsely pubescent or hirsute branchlets. Leaf-lamina 9–20 x 9–20 cm., ovate-triangular, sagittate-cordate at the base, sharply acuminate or apiculate at the apex, herbaceous or submembranous, sparsely hairy to glabrescent, basal nerves 7–9, palmate, petiole 6–15 cm. long. Male inflorescences up to 30 cm. long on a peduncle 6–15 cm. long; axis hairy or pubescent; bracts 2.5–3 mm. long, ovate; pedicels 2–4 mm. long. Male flowers with oblong-elliptic sepals, 3–4 x 1.5–2 mm., generally glabrescent; synandrium wider than high, sessile or shortly stipitate, with a thickened stipe up to 0.5 mm. long. Female inflorescences 8–10 cm. long. Female flowers with carpels 1.5–2 mm. long. Drupelets up to 3.5 cm. long; peduncle 1 cm. long, glabrescent. Seeds 1.5–3 cm. long.