Liana to 15m with striate glabrous stems. Glabrous leaves to 90mm x 40mm. Terminal thyrses with bracts, yellowish flowers, 8 glabrous involucral bracts to 7mm x 1.5mm, 4-5 female florets with glabrous yellow corolla, tube 5mm long, throat 2mm long, lobes 0.8mm x 0.25mm, 12-14 disc florets, glabrous yellow corolla 10mm long, tube 6mm long, throat 2mm long, lobes 1.5mm x 0.6mm, 5-ribbed glabrous achenes 1.2mm long with bristles 8mm long