Callirhoe is a genus of flowering plants in the mallow family, Malvaceae. Its nine species are commonly known as poppy mallows and all are native to the prairies and grasslands of North America. Of the nine, some are annuals while others are perennial plants. The genus is named for the Oceanid Callirrhoe in Greek mythology. Poppy mallow leaves are alternate and palmately lobed. The flowers are cup-shaped and brightly colored.