Bidens cernua var. elatior Torr. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Bidens species Bidens cernua Name Homonyms Bidens cernua var. elatior Torr. ex Greene, 1901 Bidens cernua var. elatior Torr.