Ratibida columnifera, commonly known as upright prairie coneflower or Mexican hat, is a species of flowering plant in the daisy family, Asteraceae, that is native to much of North America. It inhabits prairies, plains, roadsides, and disturbed areas from southern Canada through most of the United States to northern Mexico.
Other Names: 草原松果菊, Ratibida En Colonne, Rudbeckia columnifera, Sombrero Mexicano, Mexican Hat, Yellow Coneflower