Climber, 2-5 m; sparsely (brown-)grey hairy, leafy stem 1.5-5 mm diam., with curved hairs 0.1(-0.2) mm long, cystoliths not obvious; monoecious. Leaves: petiole 3-4 cm long, with curved hairs c. 0.5 mm long, the lower portion ± twisted on drying; blade 3-or 5-lobed to 1/3-3/4, subcircular in outline, 9-13 cm diam., lobes narrowly triangular or narrowly elliptic, 3-9 cm long, both surfaces sparsely appressed hairy, hairs c. 1 mm long, margin with sparse brown-black soft teeth to 1 mm long. Male raceme 5-10-flowered in a condensed spike 0.5-1 cm long; peduncle c. 1.5 cm long, co-axillary with female flowers. Male flowers: pedicel c. 1 mm long; flowers not known. Female flowers solitary or 2-5 fascicled at the node or with (presumably) male flowers arranged in 0.5-3 cm long lateral short-shoots. Fruit subglobose-ellipsoid, 1-1.3 cm long, dull brown, coarsely wrinkled on drying; fruiting pedicel c. 0.3 cm long. Seed 1, globose, c. 7 mm diam., dark brown with a faint paler margin, smooth.
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