Climber to 10 m long, short brown hairy, partly glabrescent, leafy stem 2-4 mm diam.; dioecious (or monoecious?). Probract obovate, 3 by 2 mm, glands absent. Tendrils 2-branched (the second branch reduced). Leaves: petiole 1.5-3 cm long; blade brown on drying, (membranous-)coriaceous, simple, unlobed, in outline (narrowly) or broadly ovate, (8-)12-23 by (6.5-)10-18 cm, finely bullate and somewhat shiny above, glands few, 0.5-1 mm diam., cystoliths not obvious, base shallowly cordate-truncate, margin entire, somewhat recurved; veins (3-)5 from the base, curved, and few smaller veins from the midrib, ± sunken above. Male raceme densely short-hairy; peduncle (1.5-)3-4 cm long; rachis not thickened, 6-21 cm long, 3-4 mm thick, (10-)20-35-flowered, with conspicuously thickened persistent pedicels; bracts caducous or subpersistent, somewhat shifted upwards the pedicel, (ob)ovate, 5-7 by c. 3 mm, obtuse, entire, with glands. Male flowers (from buds): pedicel c. 2 mm long, persistent (after the flowers are shed becoming thicker and longer, giving the raceme a branched aspect); sepals narrowly triangular, c. 3 mm long, entire. Female flowers not known. Fruit ripening evenly orange-red, ovoid-ellipsoid, c. 10 by 7 cm, apex shortly beaked; dry pericarp possibly c. 10 mm thick; exocarp thick-leathery, smooth; pulp not known; fruiting pedicel c. 1.5 cm long, 5 mm thick. Seeds brown, compressed, obovate, 13-15 by 8-9 by 1-2 mm, base cuneate, apex broadly rounded, margin c. 1.5 mm broad, edge entire.
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