Twining herb with puberulent stems. Leaves to 65mm x 22mm, glabrous except puberulent on mid-rib above. 4-flowered umbels, glabrescent sepals 1.5mm x 0.7mm, corolla to 3.5mm long, pale purple inside glabrous outside, corolla tube 2.5mm x 2mm & 1.2mm wide at throat, sparsely hairy inside, lobes 1.2mm.