A climber with numerous upright woody stems anchored to the ground and to the base of the tree trunk by adventitious roots. Stem barely touching the tree trunk, 0.5-1 cm or more in diameter, without exudate, slightly fissured with prominent leaf scars and bud scars, pubescent, turning glabrous when mature; outer bark light brown to dark brown; inner bark brown. Old stems hollow. Leaves alternate spiral, simple, entire, ovate to rhomboid, apex sharply acuminate, base cuneate; blade 7-28 cm long, 5.5-16 cm broad, glabrous to hairy; petiole woody, 3-16 cm long, grooved, glabrous to dense hairy; stipules interpetiolar, 1.7-5 cm long, crescentic, coriaceous, maroon turning brown when dried; venation pinnately netted, craspedodromous with 9-11 pairs of straight lateral nerves. Female inflorescence branched dichotomously 7-9 times; primary peduncles 2-4 cm long; peduncular bracts green and caducous; heads 2-3 mm in diameter, located at the tip of ultimate dichotomies, composed of minute, cream-colored, fragrant flowers. Female flowers sessile, 0.75-1 mm, 4 toothed; ovary superior, 0.5-0.75 mm, unilocular, 1-ovuled; stigma obliquely capitate, brushlike; interfloral bracts very minute. Male inflorescence similar to female inflorescence but solitary terminal flowers arising from the axils of ultimate dichotomies. Male flowers sessile, 1-1.25 mm long, 0.75 mm broad, 4 tepals incurved at the apex; stamens 4; filaments slightly inflexed at the apex; interfloral bracts very minute. Fruits achenes, 1-2 mm long, 0.5-1 mm broad with the persistent perianth as the basal cup.