Large dioecious canopy liana; trunk near the ground to ca 10 cm diam; stems terete, puberulent to tomentose (striate when dry). Petioles 4-14 cm long, puberulent to tomentose; blades ovate to suborbicular, blunt to apiculate (rarely emarginate) at apex, truncate to cordate at base, 10-20 cm long, 9-18 cm wide, subcoriaceous, glabrous above, white-woolly below; veins at base 5, palmate, with 2-4 additional pairs of major lateral veins above. Staminate inflorescences paniculate; panicles fascicled in leaf axils, often on older stems, to 10 cm long, the branches short; all axes densely tomentose; flowers greenish-white; sepals 9-16, the outermost reduced, tomentose or ciliolate, the inner 6-8 much larger, to 3 mm long, oblong-obovate to obovate, recurved, glabrate or inconspicuously pubescent, ciliolate; petals usually 6, minute and obscured by sepals, less than 1 mm long; stamens 6, ca 1.5 mm long; anthers +/- horizontal, affixed subbasally, the connective produced beyond the thecae and usually directed inward. Pistillate inflorescences and flowers similar to staminate but with gynoecium of 6 pistils, the pubescence dense, short-appressed; style 1 per carpel, simple, ca 0.5 mm long, slightly curved. Drupes oblong-ovoid, ca 1.5 mm long, narrowed at base into a short stipe, tomentose to glabrous in age. Croat 13801.