Monoecious vine, sparsely short-pubescent all over, more densely on petioles and pedicels. Leaves alternate, compound; stipules paired, linear, 5-10 mm long, persistent; petioles 1.5-6 cm long, with 2 small acicular stipels at apex; leaflets 3, +/- narrowly elliptic, acute to acuminate, acute to rounded at base, 4-12 cm long, l-3 cm wide, the lateral leaflets markedly asymmetrical, all margins with minute, apiculate teeth. Inflorescences bisexual, axillary; peduncles 1-2 (2.5) cm long; flowers subtended by a pair of involucral bracts, the bracts trilobate, greenish, ca 1.5-2.5 cm long, pubescent on veins and margins; staminate flowers 8 or 9, in a nearly sessile cymule; pedicels articulate, 2-3 mm long; calyx lobes 4 or 5; disk and petals lacking; stamens ca 25, the staminal column minute; pistillate flowers 3, subtended by 2 bractlets ca 3 mm long; calyx lobes 3-11, unequal; disk and petals lacking; ovary densely hispidulous; styles 3, connate, 5-6 mm long; stigma 1, compound, concave, 0.5-1 mm wide. Capsules 6.5-8.5 mm diam, with 3 cocci 5-7 mm long; seeds nearly globose, ca 3-3.5 mm diam, mottled. Croat 7449.