Erysimum bourgeauanum Coss. ex Nyman Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Brassicales family Brassicaceae genus Erysimum species Erysimum nevadense Name Homonyms Erysimum bourgeauanum Coss. Erysimum bourgeauanum Coss. ex Nyman