Usually biennial, up to 1.25 m tall, pubescent to glabrescent herbs. Leaves 2-4 cm long, 2-5 cm broad, 3-lobed, truncate to broadly cordate at; stipule lanceolate, scarious, c. 5 mm long, 1.5 mm broad; petiole 2-6 cm ,pilose. Flowers axillary (1-) 2-4 in fascicles; pedicel c. 2 cm long. Epicalyx segments ovate, 2-3 mm long, 1.5 mm broad. Calyx free to the middle, 3-6 mm long, glabrescent; lobes broadly triangular, 2-3 mm broad. Petals pink-purple cm long, c.1 cm broad, obovate, emarginate, claw ciliate. Staminal c. 3 mm long, stellate pubescent. Fruit glabrous, 5-6 mm across, mericarps 10-12, reticulate. Seeds brown, c. 2.5 mm long and broad.