? rhenana Boreau Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Centaurea species Centaurea stoebe Name Homonyms ? rhenana Müller, 1855 ? rhenana Meunier, 1917 ? rhenana Stürtz, 1893 ? rhenana Alberti, 1962