Machaeranthera glabriuscula var. glabriuscula Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Xylorhiza species Xylorhiza glabriuscula Name Homonyms Machaeranthera glabriuscula var. glabriuscula