Salix discolor subsp. rigidior (Andersson) C.K.Schneid. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Malpighiales family Salicaceae genus Salix species Salix discolor Name Homonyms Salix discolor var. rigidior (Andersson) C.K.Schneid. Salix discolor f. rigidior (Andersson) C.K.Schneid. Salix discolor subsp. rigidior Andersson Salix discolor subsp. rigidior (Andersson) C.K.Schneid.