Porophyllum ruderale var. ellipticum (Cass.) A.Gray Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Porophyllum species Porophyllum ruderale Name Homonyms Porophyllum ruderale var. ellipticum (Cass.) A.Gray ex B.L.Rob. Porophyllum ruderale var. ellipticum (Cass.) A.Gray