| Name | Cirsium inornatum (Wooton & Standley) Wooton & Standley |
| Authorship | (Wooton & Standley) Wooton & Standley |
| Rank | Species |
| Placed in | Cirsium Miller |
| Citation | 1915 Contr. U.S. Natl. Herb. 19: 751 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cirsium inornatum (Wooton & Standley) Wooton & Standley |
| Identification made in | 1991 (1) |