Taxa: Horkelia fusca, Horkelia fusca var. brownii, Horkelia fusca var. capitata (Horkelia fusca ssp. capitata), Horkelia fusca var. filicoides (Horkelia fusca ssp. filicoides, Potentilla douglasii var. filicoides), Horkelia fusca var. fusca (Horkelia fusca ssp. fusca), Horkelia fusca var. parviflora (Hork
... (show all)elia fusca ssp. parviflora, Potentilla douglasii var. parviflora), Horkelia fusca var. pseudocapitata (Horkelia fusca ssp. pseudocapitata, Potentilla douglasii var. pseudocapitata), Horkelia fusca var. tenella (Horkelia fusca ssp. tenella, Potentilla douglasii var. tenella)