Polemonium caeruleum var. vulgare Regel Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Ericales family Polemoniaceae genus Polemonium species Polemonium caeruleum Name Homonyms Polemonium caeruleum var. vulgare Hook. Polemonium caeruleum var. vulgare Ledeb. Polemonium caeruleum subsp. vulgare (Ledeb.) Brand Polemonium caeruleum f. vulgare (Ledeb.) Regel