Homotypic synonym according to GBIF classification (Originally found in sources as doubtful taxon within Potentilla gracilis Dougl.)
Potentilla gracilis var. rigida (Nutt.) S. Wats.
Heterotypic synonym according to GBIF classification (Originally found in sources as synonym of Potentilla gracilis var. fastigiata (Nutt. ex Torr. & A.Gray) S.Watson)