Polemonium yezoense subsp. hidakanum Koji Ito Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Ericales family Polemoniaceae genus Polemonium species Polemonium caeruleum Name Homonyms Polemonium yezoense subsp. hidakanum Koji Ito Polemonium yezoense var. hidakanum KojiIto