Helianthus leiostemon Raf. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Helianthus species Helianthus divaricatus Name Homonyms Helianthus leiostemon Raf. ex DC. Helianthus leiostemon Raf.