Bidens steppia subsp. humbertii Sherff Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Bidens species Bidens grantii Name Homonyms Bidens steppia var. humbertii Sherff, 1934 Bidens steppia subsp. humbertii Sherff