Polemonium roelloides L.f. Dataset GBIF Backbone Taxonomy Rank SPECIES Published in Suppl. Pl.: 139 (1782) Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Lamiales family Stilbaceae genus Retzia species Retzia capensis Name Homonyms Polemonium roelloides L.f. Polemonium roelloides Thunb.