Climbers with hebaceous stems, sparsely hirsute to glabrous. Leaves palmately divided almost to the base, the 7-9 lobes sinuate to sinuate-dentate, usually glabrous. Flowers usually solitary, occasionally cymose. Sepals oblong, 18-25 mm long, mucronate, glabrous. Corolla white with purple centre, 3-4.5 cm long. Fruit capsular, depressed-globose, 1-2 cm in diameter, subtended and partially surrounded by the calyx. Seeds black, glabrous.