Salix arctica var. tortulosa (Trautv.) Raup Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Malpighiales family Salicaceae genus Salix species Salix arctica Name Homonyms Salix arctica var. tortulosa (Trautv.) Raup Salix arctica subsp. tortulosa (Trautv.) Hultén