Salix nigra var. marginata Wimm. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Malpighiales family Salicaceae genus Salix species Salix caroliniana Name Homonyms Salix nigra var. marginata Wimm. ex Andersson Salix nigra var. marginata Wimm.