Vernonia perrottetii f. microcephala Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Crystallopollen species Crystallopollen angustifolium Name Homonyms Vernonia perrottetii f. microcephala Vernonia perrottetii subsp. microcephala O.Hoffm.