Brassica praecox Waldst. & Kit. ex DC. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Brassicales family Brassicaceae genus Brassica species Brassica napus Name Homonyms Brassica praecox Waldst. & Kit. ex DC. Brassica praecox Kit. ex Hornem. Brassica praecox Kit. Brassica praecox Schult.