Trachelium caeruleum subsp. isabellinum Voss Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Campanulaceae genus Trachelium species Trachelium caeruleum Name Homonyms Trachelium caeruleum f. isabellinum Voss Trachelium caeruleum subsp. isabellinum Voss