Centaurea boissieri var. calvescens (Maire) Blanca Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Centaurea species Centaurea boissieri Name Homonyms Centaurea boissieri subsp. calvescens (Maire) Greuter Centaurea boissieri var. calvescens (Maire) Blanca Centaurea boissieri var. calvescens Maire