| Name | Potentilla effusa Douglas ex Lehmann |
| Authorship | Douglas ex Lehmann |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Potentilla |
| Contains | Potentilla effusa var. filicaulis Nuttall ex Torrey & A. Gray Potentilla effusa var. rupincola (Osterhout) Th. Wolf |
| Holdings | 75 Specimens held in the Harvard University Herbaria identified as Potentilla effusa Douglas ex Lehmann |
| Identification made in | [no date] (37), 1980 (37), 1984 (1) |