Somewhat woody vine, glabrous, usually armed with sparse, stout, recurved prickles 5-6 mm long, especially on older stems; young stems +/- angulate. Petioles 5-20 mm long; blades ovate-oblong or ovate to lanceolate, acute or abruptly acuminate and apiculate at apex, acute to obtuse or cordate at base, 6.5-14 cm long, 2.5-9 cm wide, palmately 5-7-veined at base, occasionally aculeate on petioles and underside of major veins. Flowers 6-parted, cream-colored or greenish, in axillary umbels; peduncles 1-9 mm long, much shorter than subtending petioles; pedicels 4-13 mm long, interspersed with minute bracteoles on the globose receptacle; staminate umbels solitary or in a branched series of 3-5 umbels; tepals ovate-oblong, 2-2.8 mm long, 1-1.4 mm wide; stamens ca 1.5 mm long; filaments longer or shorter than anthers. Pistillate umbels solitary; tepals oblong-lanceolate, 1.5-2.8 mm long; staminodia 3 or 6, ca 1 mm long; styles 3. Berries subglobose, green to dull red or black at maturity, 5-10 mm long; seeds 1-3, embedded in a fleshy matrix. Croat 4305, 14955.