Potentilla arachnoidea Douglas Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Rosales family Rosaceae genus Potentilla species Potentilla pensylvanica Name Homonyms Potentilla arachnoidea (Lehm.) Douglas ex Rydb. Potentilla arachnoidea Douglas ex Steud. Potentilla arachnoidea Douglas ex Lehm. Potentilla arachnoidea Douglas