| Name | Cirsium quercetorum var. xerolepis Petrak |
| Authorship | Petrak |
| Rank | Variety |
| Placed in | Cirsium quercetorum (A. Gray) Jepson |
| Citation | 1917 Beih. Bot. Centralbl., Abt. 2. 35(2[2/3]): 363 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cirsium quercetorum var. xerolepis Petrak |
| Identification made in | [no date] (1) |
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