Vine, scrambling up to c. 3 m from ground. Corolla 7.5-9 x 6-7 cm across the expanded top, mauve-blue with pinkish mid-petaline bands inside, these whitish outside; corolla tube whitish towards base. Capsules 4-5-lobed, 1.3-1.5 cm across flattened top. Seeds black. Common but capsules infrequent I think.