Phaca americana (Hook.) Britton & A.Br. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fabales family Fabaceae genus Astragalus species Astragalus americanus Name Homonyms Phaca americana (Hook.) Britton & A.Br. Phaca americana (Hook.) Rydb.