| Name | Phragmidium potentillae-canadensis Dietel |
| Authorship | Dietel |
| Rank | Species |
| Placed in | Phragmidium |
| Citation | 1903 Hedwigia 42: 179 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Phragmidium potentillae-canadensis Dietel |
| Identification made in | [no date] (4) |