A common plant, sometimes found in profusion. The stem is erect to decumbent, glabrous or spreading-hairy. There are 5 sepals, and generally 9–17 slender, shiny petals. Leaves are variable, generally 3-lobed or ternate, with lobes deeply dissected or compound. Fruits are disk-like, with smooth faces and small, curved, lanceolate beaks.