Helianthus subtuberosus Bourg. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Helianthus species Helianthus subtuberosus Name Synonyms Helianthus subtuberosus f. subtuberosus Helianthus subtuberosus var. subtuberosus Homonyms Helianthus subtuberosus (Britton) Britton Helianthus subtuberosus (Britton) Bourg. ex A.Gray Helianthus subtuberosus Bourg.