Leaf-lamina 3·5–9·5 × 4–12 cm., broadly ovate in outline, cordate, asperulous or scabrid-punctate above, glabrous beneath, much dissected, pedately 5-lobed to the base with the lobes regularly and deeply pinnately lobulate, ultimate segments narrowly to broadly elliptic or ovate-elliptic, sinuate-dentate, obtuse to acute, apiculate.
male flowers 5–14, sometimes co-axillary with 1–4 female flowers, pedicels 10–35 mm. long. Receptacle-tube 1·5–3 mm. long, lobes 1–2·7 mm. long, filiform. Corolla pale yellow, lobes 6–7·5 × 2·5–3 mm.
Fruits 1·5–2·7 × 1·2–2 cm., solitary or in clusters of 2–4, red with longitudinal rows of white spots, shortly ovate-ellipsoid, slightly rostrate.
Female flowers 1–4, sometimes co-axillary with up to 13 male flowers; pedicels c. 2 mm. long; ovary c. 4 × 1·5 mm.
Petiole 1·5–4·5 cm. long, sparsely setulose.
Stems scandent, herbaceous, glabrous.
Probracts 1–3 mm. long, spathulate.
Seeds c. 5 × 3 × 3·5 mm.