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Prairie coneflowers
Ratibida columnifera
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Heliantheae
Subtribe:	Rudbeckiinae
Genus:	Ratibida Raf.
Type species
Ratibida sulcata Raf.
Synonyms
Lepachys Raf. Obeliscaria sect. Ratibida (Raf.) DC. Obeliscaria sect. Lepachys (Raf.) DC. Obelisteca Raf. Obeliscaria Cass.

Ratibida is a genus of North American plants in the tribe Heliantheae within the family Asteraceae. Members of the genus are commonly known as prairie coneflowers or mexican-hat.

Species

There are 7 species:

• 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 – 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)

References

1. ^ "Genus: Ratibida Raf". Germplasm Resources Information Network. United States Department of Agriculture. 1996-09-17. Retrieved 2011-02-10.
2. ^ Flann, C (ed) 2009+ Global Compositae Checklist Archived 2015-01-04 at archive.today
3. Rafinesque, Constantine Samuel. 1817. Florula Ludoviciana, page 73
4. "Ratibida". Integrated Taxonomic Information System. Retrieved 2011-02-10.
5. Tropicos, Ratibida Raf.
6. Richards, E. L. 1968. A monograph of the genus Ratibida. Rhodora 70: 348–393.
7. "Ratibida". Go Botany. New England Wildflower Society.
8. Biota of North America Program, 2013 county distribution maps
9. "GRIN Species Records of Ratibida". Germplasm Resources Information Network. United States Department of Agriculture. Retrieved 2011-02-10.
10. Urbatsch, Lowell E.; Cox, Patricia B. (2006). "Ratibida". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

External links

• Media related to Ratibida at Wikimedia Commons
• Data related to Ratibida at Wikispecies

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