Polemonium humile Turcz. ex Ledeb. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Ericales family Polemoniaceae genus Polemonium species Polemonium caeruleum Name Homonyms Polemonium humile Lindl. Polemonium humile Salisb. Polemonium humile Willd. ex Roem. & Schult. Polemonium humile Turcz. ex Ledeb. Polemonium humile Willd. Polemonium humile Turcz.