Brassica nigra
(L.) K.KochLEAST CONCERNPublished in Deutschl. Fl., ed. 3, 4: 713, 1833
Rhamphospermum nigrum, black mustard, is an annual plant native to cooler regions of North Africa, temperate regions of Europe, and parts of Asia..It is cultivated for its dark-brown-to-black seeds, which are commonly used as a spice.
