Brassica nigra f. turgida Rouy & Foucaud, 1895 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Brassicales family Brassicaceae genus Brassica species Brassica nigra Name Homonyms Brassica nigra var. turgida (Pers.) Alef.