Astragalus tristis Torr. & A.Gray Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fabales family Fabaceae genus Astragalus species Astragalus canadensis Name Homonyms Astragalus tristis Torr. & A.Gray Astragalus tristis Nutt.