Small climber, annual? stem slender, subglabrous; monoecious. Leaves: petiole 1-1.5 cm long, sparsely minutely pubescent; blade membranous, green on drying, simple, faintly to distinctly (3-)5-lobed (up to c. 2/3 deep), ovate in outline, 3.5-7 cm diam., glabrous except for a few hairs near insertion of petiole, base subtruncate or cordate, margin smooth or coarsely sinuate, apex acute-acuminate, 1-2 mm mucronate as are lobe-apices. Inflorescences glabrous, all or predominantly male-flowered, sometimes with a few female flowers co-axillary with lowermost branch(es), branches few, consisting of 5-10 male-flowered racemes; position of female flowers (from fruits) either mixed in otherwise male flowered panicle (see above) or solitary at leafy node; bracts oblong, 0.5-1 mm long, subpersistent. Male flowers: pedicel c. 1.5 mm long, the lower half persistent; perianth bowl-shaped; receptacle-tube c. 1 by 1.5-2 mm, inside thickened into an inconspicuous disc; sepals (long-)triangular, c. 0.8(-1) by 0.7 mm, acute; petals ovate-broadly elliptic, minutely mucronate, dotted with glands; filaments united for 2/3 or completely united, c. 1 mm long, anthers ellipsoid, c. 0.6 mm long, without adaxial dark blotch. Female flowers not seen (ovary subclavate, 4-5 mm long, glabrous, corolla segments c. 2 mm long, see Cogniaux, 1916). Fruit 1(-6) per infructescence, solitary at leafy node, or peduncled, 2.5-3 cm long, glabrous, base rounded, 1-1.2 cm wide at truncate apex; fruiting pedicel c. 1 cm long. Seeds 15-20, obovate with narrowed base, 6-7 by 4-5 mm, margin 5-7 coarsely dentate or tuberculate, faces finely warty, wing c. 9 by 4-5 mm.