Helenium nudiflorum var. nudiflorum Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Helenium species Helenium flexuosum Name Homonyms Helenium nudiflorum f. nudiflorum Helenium nudiflorum var. nudiflorum