Right twining tuberous vine with rhizome to 4m x 50mm diameter, reddish-brown striate pilose stems with peeling bark, coriaceous pilose leaves to 260mm x 230mm, male axillary panicles to 1500mm long with outer bract to 2mm x 1.5mm & inner bract 1.5mm x 1mm, 5mm purple or reddish flowers, fleshy tepals 1.5mm x 1.5mm, female axillary solitary racemes to 450mm with outer bract 3mm x 1.5mm & inner bract 2mm x 1mm, fleshy tepals 2.5mm x 2mm & tube 0.6mm long, glabrous winged fruit capsules to 57mm x 40mm