Centaurea ×arnaudii (Rouy) A.W.Hill, 1926 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Centaurea species Centaurea arnaudii Name Homonyms Centaurea arnaudii Rouy Centaurea ×arnaudii (Rouy) A.W.Hill, 1926