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CCDB → Angiosperms → Compositae → Ratibida → Ratibida columnaris (Pursh) D. Don
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Ratibida columnaris (Pursh) D. Don | Ratibida columnifera (Nutt.) Wooton & Standl. | 14 | IPCN online | Pinkava, D. J. & D. J. Keil. 1977. Chromosome counts of Compositae from the United States and Mexico. Amer. J. Bot. 64: 680–686. | |||
| ! | Ratibida columnaris (Pursh) D. Don | Ratibida columnifera (Nutt.) Wooton & Standl. | 27, 26 | Cave1959 | Perdue 1959 |