| Name | Cirsium canescens Nuttall |
| Authorship | Nuttall |
| Rank | Species |
| Placed in | Cirsium Miller |
| Citation | 1841 (2 Apr 1841) Trans. Amer. Philos. Soc. 7: 420 |
| Holdings | 24 Specimens held in the Harvard University Herbaria identified as Cirsium canescens Nuttall |
| Identification made in | [no date] (5), 1960 (18), 1961 (1) |