Liana, shrub, subshrub or herb to 10m. Glabrous or sparsely pilose serrate or entire leaves to 125mm x 50mm. Axillary few-flowered cymes with basal bracts & minute bracteoles, flower calyx to 7mm long with 5 lobes to 3mm long, green to white 5-lobed corolla with blue to violet lower lobe, tube to 123mm long.