Large herbaceous climbing vine with quadrangular strigose stems. Mucronate leaves to 100mm x 50mm, scabrous above & pubescent beneath. Axillary inflorescence of 1-2 purple flowers with strigose bracts to 15mm x 11mm, white glabrous corolla with dark purple spots in throat to 30mm long with tube 8mm long at throat & lobes 4mm wide. Deep blue to purple fruit