Cyclachaena ambrosiaefolia (A.Gray) Rydb. & Britton Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Hedosyne species Hedosyne ambrosiifolia Name Homonyms Cyclachaena ambrosiaefolia (A.Gray) Rydb. & Britton