Twining vine, glabrous young stems or with white hairs. Glabrous leaves to 28mm x 9mm. Extra-axillary racemes of 7-16 flowers. Green to purple calyx lobes to 1.1mm x 0.7mm, puberulent above, glabrous beneath. White to green corolla with tube to 0.6mm long & lobes to 2.3mm x 0.9mm, glabrous above & hairy beneath. Single glabrous follicles to 48mm x 2mm.