Annual, up to 500 mm tall. Leaves in a ± spreading, basket-like basal rosette, stipulate, divided, 40-150 mm long, with 5-14 lobes, abruptly downturned or upturned from midrib. Flowers large, white, ageing to mauve, sepals glabrous, ovules 20-38. Fruit linear, 25-40 x 2-2.7 mm, margins straight.