Stems up to 20 m, scrambling or climbing, angled, sparsely to densely prickly. Leaves up to 12.5 x 9 cm, membranous or subcoriaceous, broadly ovate or orbicular, the base rounded or subcordate, unarmed or with minute prickles on the margin and midvein beneath; petiole not thickened towards apex. Flowers 4-12 in simple, solitary, axillary umbels; peduncles 7-20 mm. Perianth-segments 4-5(-6) mm. Berry red.