Climber to 5 m long, whitish or brown soft hairy, hairs 1-2 mm long, leafy stem 2-4 mm diam.; dioecious. Probract absent. Tendrils 3-5-branched, point of branching 2-4 cm from the base. Leaves: petiole 3-7 cm long; blade green on drying, membranous, simple, unlobed, in outline broadly ovate, 6-19(-21) by 5-13 cm, finely scabrous above and beneath, glands several, scattered, 0.5 mm diam. or less, cystoliths present but indistinct, margin minutely dentate or dentate-serrate, apex acute-acuminate, with a 13-20(-25) mm long acumen; veins 5 (or 7), ± arching. Male raceme (sparsely or) densely brown soft hairy; peduncle 4-8(-9) cm long, 2-3 mm thick; rachis not thickened, 4-7 cm long, 5-12-flowered, occasionally male flowers single; bracts caducous, on the rachis, c. 1 mm long. Male flowers densely dark brown hairy, including small gland-hairs; pedicel 20-40 (in single flowers to 45) mm long, (sub)persistent, peduncle or solitary pedicel often straw-like withering; receptacle-tube narrow, tubular, 35-65 mm long, at throat 5-6(-7) mm wide; sepals narrowly triangular or linear, 11-16 mm long, (1.5-)2-2.5 mm wide at base, entire; petals narrowly elliptic, c. 15 mm long, threads much longer; synandrium 7-8 mm long, at apex with 3 processes 1-1.5 mm long, filaments 4-5 mm long, glabrous; disc consisting of 3 fleshy, line-shaped elements, c. 25 mm long. Female flowers solitary, resembling male flowers; pedicel 15-25 mm long; ovary densely hairy, narrowly ellipsoid, 10-15 by c. 5 mm. Fruit ripening (yellow-)green with whitish stripes, ellipsoid, 9-10 by c. 6 cm, apex shortly beaked; exocarp leathery, thin, smooth; pericarp carnose, dry pericarp 5 mm thick; pulp whitish, slightly bitter; fruiting pedicel c. 2 cm long, 4 mm thick. Seeds tumid, broad, with two inflated lateral parts, c. 10 by 18 by 4 mm, margin absent, edge entire, smooth.
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