Polemonium caeruleum var. laxiflorum 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 subsp. laxiflorum (Regel) Koji Ito Polemonium caeruleum f. laxiflorum Regel Polemonium caeruleum subsp. laxiflorum (Regel) KojiIto Polemonium caeruleum var. laxiflorum Regel Polemonium caeruleum subsp. laxiflorum Regel