| Name | Cirsium breweri var. wrangelii Petrak |
| Authorship | Petrak |
| Rank | Variety |
| Placed in | Cirsium breweri (A. Gray) Jepson |
| Citation | 1917 Beih. Bot. Centralbl., Abt. 2. 35(2[2/3]): 461 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Cirsium breweri var. wrangelii Petrak |
| Identification made in | [no date] (5) |
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