An annual herb, stems twining or sometimes prostrate, 1—3 m long, glabrous or sparsely hairy. Leaves broadly ovate to orbicular in outline, 2.5—8 cm x 2—7 cm, base cordate, basal lobes rounded or angular to lobed, apex rounded, margins coarsely dentate to more or less deeply 3-lobed, glabrous or sparsely pilose, petiole 3—10(—18) cm long, slender. Flowers solitary or in a few-flowered cyme, peduncle 1—10 cm long, bracts minute; pedicel 2.5—8 mm long, sepals slightly unequal, 7—8 mm long, narrowly oblong, margins fimbriate, corolla funnel-shaped, 18—20 mm long, pink or pale red-purple, sometimes with a darker centre, filaments hairy at base, ovary hairy. Capsule subglobular, 5—6 mm long, shortly mucronulate, bristly hairy. Seeds 4 or less, 3.5 mm long, glabrous.

PROSEA (Plant Resources of South-East Asia) Foundation

Used as a poultice against headaches.