Salix polaris var. glabrata Hultén Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Malpighiales family Salicaceae genus Salix species Salix polaris Name Homonyms Salix polaris var. glabrata Hultén Salix polaris subsp. glabrata Hultén