| Name | Potentilla effusa var. filicaulis Nuttall ex Torrey & A. Gray |
| Authorship | Nuttall ex Torrey & A. Gray |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Potentilla effusa Douglas ex Lehmann |
| Citation | 1840 Fl. N. Amer. [Torr. & A. Gray] 1: 437 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Potentilla effusa var. filicaulis Nuttall ex Torrey & A. Gray |
| Identification made in | 1978 (1) |
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