Salix humboldtiana f. fastigiata (André) C.K.Schneid. Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Malpighiales family Salicaceae genus Salix species Salix humboldtiana Name Homonyms Salix humboldtiana var. fastigiata André Salix humboldtiana f. fastigiata (André) C.K.Schneid.