| Name | Cirsium clavatum (M. E. Jones) Petrak |
| Authorship | (M. E. Jones) Petrak |
| Rank | Species |
| Placed in | Cirsium Miller |
| Contains | Cirsium clavatum var. americanum (A. Gray) D. J. Keil Cirsium clavatum var. osterhoutii (Rydberg) D. J. Keil |
| Citation | 1917 Beih. Bot. Centralbl., Abt. 2. 35(2[2/3]): 310–311 |
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