Herbaceous glabrous twining perennial rhizomatous vine, climbing or prostrate with leaves to 120mm x 100mm. Many-flowered cymes with bracteoles to 2mm, 25mm long lilac flowers with purple stripes on outside & deep purple interior base, coriaceous glabrous sepals to 5.5mm long, pale lilac glabrous corolla with dark centre to 30mm long with limb 30mm diameter. Glabrous capsule 12mm x 6mm.