Annual or sometimes perennial herb with thick fusiform taproot. Stems twining, hairy to glabrescent, up to 3 m long. Leaves cordate-ovate, 20-100 x 15-75 mm, entire, apex attenÂuate-acuminate to obtuse, rounded basal lobes and sinus, thinly hairy on both surfaces; petiole pilose, 15-100 mm long. Inflorescence a few-to many-flowered involucrate head; peduncle pilose, 20-50 mm long; outer bracts connate into large, pubescent boat-shaped involucre 25-40 mm long with 2 cusps; inner bracts oblong or elliptic, obtuse, ± 15 mm long. Sepals unequal, hairy; 3 outer ones oblong to oblong-spathulate, apex obtuse, ±10 mm long; inner ones much narrower, apex acute, 9 mm long. Corolla salver-shaped, pink or white with a darker centre or purple, tube slender, ± 20 mm long; limb spreading, 15-30 mm wide; midÂpetaline areas sparsely pilose. Capsule ovoid, glabrous, 6 mm long. Seeds glabrous or thinly pubescent, ovoid, ± 4 mm long, black. Flowering time March to June.