? helleri Porter Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Liatris species Liatris helleri Name Homonyms ? helleri Porter ? helleri Mearns, 1913 ? helleri Osgood, 1901 ? helleri Schwartz et al., 1983