| Name | Cirsium americanum (A. Gray) K. Schumann |
| Authorship | (A. Gray) K. Schumann |
| Rank | Species |
| Placed in | Cirsium Miller |
| Citation | 1903 Just's Bot. Jahresber. 29(1[3]): 566 |
| Holdings | 25 Specimens held in the Harvard University Herbaria identified as Cirsium americanum (A. Gray) K. Schumann |
| Identification made in | [no date] (21), 1911 (4) |
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