Ratibida is a genus of North American plants in the tribe Heliantheae within the family Asteraceae.Rafinesque, Constantine Samuel. 1817. Florula Ludoviciana, page 73 Members of the genus are commonly known as prairie coneflowersTropicos, Ratibida Raf.Richards, E. L. 1968. A monograph of the genus Ratibida. Rhodora 70: 348–393. or Mexican-hat.
Species There are 7 species:Biota of North America Program, 2013 county distribution maps Ratibida coahuilensis B.L.Turner - Coahuila Ratibida columnifera (Nutt.) Wooton & Standl. – upright prairie coneflower - widespread in Canada, United States, and northeastern Mexico Ratibida latipalearis E.L.Richards - Chihuahua Ratibida mexicana (S.Watson) W.M.Sharp - Chihuahua, Coahuila, Sonora Ratibida peduncularis (Torr. & A.Gray) Barnhart – naked prairie coneflower - Louisiana, Texas Ratibida pinnata (Vent.) Barnhart – Grayhead or pinnate prairie coneflower - Ontario, eastern + central United States (primarily Great Lakes + Mississippi Valley) Ratibida tagetes (E.James) Barnhart – short-ray prairie coneflower - Chihuahua, United States (desert southwest, western Great Plains)
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