Biannual or rarely annual herb to c. 1 m high, sparsely to densely pubescent with simple hairs. Leaves triangular, (2–)4–10 cm long, 2–6(–10) cm wide; margins toothed; base cordate; petiole up to 15 cm long on basal leaves. Sepals 5–10 mm long; petals bluish-purple, 15–30 mm long. Fruit elliptic-oblong to suborbicular, 25–45 mm long, 20–40 mm wide; style 4–10 mm long; seeds 1–8 per locule, 5–8 mm diam., greyish brown, winged. Flowers Sep.–Jan. (4 records).
GipP, CVU, HSF, HNF, OtR, VAlp. Native to Europe, often cultivated for its showy flowers and attractive fruits which have a persistent silvery septum. Occasionally escaping cultivation in a range of habitats in Victoria, often in damp disturbed areas dominated by other weedy species.
