Purple Poppy Mallow’s stems sprawl along the ground up to 3 feet, forming a thick mat up to 1 foot tall. Rounded, hairy leaves are deeply lobed and cleft. The chalice-shaped, 1 1/2-2 1/2 in. wide flowers have a white spot at the base of their five, maroon petals. Flowers, which are borne on long, axillary stalks, close in the evening, open in the morning and remain closed after pollination. An attractive, spreading, drought-tolerant perennial, Winecup is susceptible to a rust during wet seasons in the Great Plains.