Asteraceae/Compositae (Aster/Composit Family) Synonym(s): Grayhead Prairie Coneflower, Pinnate Prairie Coneflower, Grayhead Coneflower, Grayhead Mexican Hat, Gray-headed Mexican Hat, Yellow Coneflower Base Flower Color: Maroon, Purple, YellowReproductive Phenology: May, Jun, Jul, Aug, Sept, Oct For more information about this plant, Click Here.