| Name | Puccinia extensicola var. euthamii Arthur |
| Authorship | Arthur |
| Rank | Variety |
| Placed in | Puccinia extensicola Plowright |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Puccinia extensicola var. euthamii Arthur |
| Identification made in | [no date] (4), 1935 (1) |
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