Dioecious, perennial herb, rootstock tuberous. Stems annual, slender, hairy, climbing or prostrate, up to 2 m long. Leaves up to 90 x 105 mm, outline broadly ovate to ovate-triangular, cordate, ± scabrid, unlobed to deeply palmately 3-5-lobed; lobes obovate to lanceolate, coarsely sinuate-dentate or lobulate, central lobe largest; petioles 6-40 mm long, densely hairy. Tendrils simple. Stipuloid bracts broadly reniform to circular, 5-25 mm long, ciliate-laciniate. Male flowers in ± sessile, 2-5-flowered clusters; pedicels 7-45 mm long, pubescent; receptacle tube 10-21 mm long, ± pilose; lobes 1.5-2.5 mm long, recurved; petals 10-25 mm long, ± greenish yellow, recurved. Female flowers: pedicels 10 mm long. Flowering time Nov., Dec. Fruit ovoid-ellipsoid, red, up to 40 x 30 mm, stalk ± 17 mm long. Seeds ± subglobose, smooth, white, 10-12 mm in diam.
Leaf-lamina 2·5–9 × 2·5–10·5 cm., broadly ovate or ovate-triangular in outline, cordate, minutely and sparsely asperulous to shortly and densely hispid or pubescent, becoming scabrid, unlobed or shallowly to very deeply palmately 3–5-lobed, the lobes obovate or broadly elliptic to narrowly elliptic or lanceolate, ± coarsely sinuate-dentate or lobulate, rounded to acute, apiculate, the central largest.
Prostrate or scandent perennial herb. Tendrils present. Stems usually hispid. Leaves minutely and sparsely asperulous to shortly and densely hispid or pubescent on both surfaces, petiolate; stipuloid bracts present at base of petioles, reniform to circular, ciliate-laciniate. Corolla lobes 10-25 mm long. Seeds 10-12 mm long. Flowers green or greenish yellow.
male flowers in sessile or shortly pedunculate 2–5-flowered clusters, rarely solitary; pedicels 7–45 mm. long, pubescent. Receptacle-tube 10–21 mm. long, sparsely pilose. Lobes 1·5–2·5 mm. long, recurved. Corolla-lobes 1–2·5 cm. long, green or greenish-yellow, reflexed.
Female flowers on 10 mm. long pedicels; ovary 4·5–12 × 3–7 mm., subglobose to ellipsoid; perianth similar to that of male flower.
Stipuloid bracts usually present, 5–25 × 5–25 mm., broadly reniform to circular, ciliate-laciniate.
Fruit 3–4 × 2–3 cm., ovoid-ellipsoid, red; fruit-stalk c. 1·7 cm. long.
Petioles 0·6–4 cm. long, ± densely pubescent.
Stems pubescent, prostrate or scandent.
Seeds c. 10–12 × 5 × 3 mm.
Tendrils simple.