Polemonium caeruleum f. caeruleum Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Ericales family Polemoniaceae genus Polemonium species Polemonium caeruleum Name Homonyms Polemonium caeruleum subsp. caeruleum Polemonium caeruleum var. caeruleum Polemonium caeruleum f. caeruleum