Viola tracheliifolia var. populifolia Skottsb. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Malpighiales family Violaceae genus Viola species Viola chamissoniana Name Homonyms Viola tracheliifolia var. populifolia Skottsb. Viola tracheliifolia f. populifolia (Skottsb.) H.St.John Viola tracheliifolia subsp. populifolia Skottsb.