Salix gongylocarpa Shuttlew. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Malpighiales family Salicaceae genus Salix species Salix nigra Name Homonyms Salix gongylocarpa Shuttlew. ex Andersson Salix gongylocarpa Shuttlew.