Perennial rhizomatous woody vine with tendrils, quadrangular stems without prickles. Coriaceous glabrous leaves to 192mm x 123mm. Axillary umbels of 8-28 flowers with many bracteoles, pistillate flowers yellowish-green with 6 tepals to 3.8mm x 2.1mm, staminate yellowish-green flowers with 6 tepals 4.3mm x 2.4mm. Berries to 4.2mm diameter.