Glabrous herbaceous twining shrub, puberulous branchlets, leaves to 155mm x 90mm. Racemes or corymbs of foetid greenish-white to yellow perfumed flowers with red-purple lines, calyx lobes to 3.7mm x 1.4mm, white to pale yellow corolla with lobes to 7.2mm x 2.2mm, corona purple with tube to 0.6mm and lobes to 5.7mm x 1.2mm