Climber to 4 m long, glabrous, leafy stem 2-4 mm diam.; dioecious. Probract linear, 5 mm long, glands absent. Tendrils 2-branched. Leaves: petiole 3-4 cm long; blade green on drying, membranous, simple, deeply 5-7-lobed, in outline subcircular, 7-21 by 8-22 cm, not or little scabrous above, glands few (1-3), ± close to the insertion of the petiole, 0.5-3 mm diam., cystoliths absent, margin entire or remotely shallowly or coarsely dentate; veins 5(-7), straight. Male raceme minutely brown hairy; peduncle 5-10 cm long, 2-3 mm thick; rachis not thickened, zigzag between the bracts, 4-13 cm long, 1.5-3 mm thick, 10-15-flowered or more; bracts persistent or caducous, obovate-rhomboid, 10-40 by 8-15 mm, margin sharply incised to 3 mm deep, glands absent. Male flowers: pedicel 1-3 mm long, persistent; receptacle-tube 40-70 mm long, at throat 10-13 mm wide, at base with an ovary-like swelling c. 5 mm long (pseudo-ovary, see note under T. intermedia); sepals narrowly elliptic, 4.5-7 mm long, 1.5-2 mm wide at base, entire or with few narrow sidelobes; petals short, fully expanded not seen; synandrium c. 9 mm long, filaments glabrous, c. 3 mm long. Female flowers: pedicel c. 20 mm long; ovary glabrous, ellipsoid, c. 8 by 6 mm; perianth not known. Fruit ripening (possibly) green, paler or yellowish striped, ellipsoid, c. 6 by 4.5-5 cm, apex not beaked; exocarp leathery, colour of fruit pulp not known; fruiting pedicel c. 1.4 cm long, 2-3 mm thick. Seeds compressed, elliptic, c. 12 by 6 by 2 mm, base truncate, apex rounded, margin faint, edge entire.
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