Glabrous scandent vine armed with spines to 5mm long & tendrils to 150mm long. Coriaceous leaves to 120mm x 100mm. Axillary umbels subtended by a coriaceous bract 8mm long. Male flowers 40-50 per umbel with subtending bracteoles to 2mm long, male sepals 5mm x 1.5mm, petals 5mm x 0.5mm.