Large perennial dioecious climber, climbing to tree-tops. Lower stems somewhat woody and corky. Leaves unlobed or rarely shallowly lobed; lamina broadly ovate, (4–) 6–10 cm long, (3–) 5–8 cm wide, cordate at base, finely denticulate, acute at apex, scabrous above. Male flowers in c. 10-flowered fascicles; pedicels 1–5 mm long; hypanthium c. 2 mm long; calyx lobes triangular, c. 0.5 mm long; corolla lobes ovate, c. 2 mm long, acute, minutely papillose within. Female flowers in 1–8-flowered fascicles; pedicels 0–6 mm long; calyx and corolla similar to male; staminodes filamentous; ovary fusiform, 6 mm long; style c. 2 mm long with 3 bilobed stigmas. Berry narrowly ellipsoidal, 1.5–2 cm long, red, fleshy. Seeds ovate, with a narrow margin.