Solanum nigrum f. violaceum Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Solanales family Solanaceae genus Solanum species Solanum americanum Name Homonyms Solanum nigrum f. violaceum Solanum nigrum var. violaceum H.Y.Chen ex Wessely Solanum nigrum var. violaceum H.Y.Chen Solanum nigrum subsp. violaceum