An erect or scrambling-climbing perennial with robust glabrous stems 60-130cm tall, from stout creeping rhizomes. With many whorls of 3-6 broadly lanceolate leaves slightly glaucous below, coiled tendril-like at their tips. The purple green tinged flowers, are in pendulous axillary clusters, subtended by tiny bracts, followed by blue-black berries. Well drained soil in full-part shade.