[Recent research by D.A. German saw the genus Mutarda reinstated with two species in our flora moved into this genus.  Sinapis arvenis L. is now Mutarda arvensis (L.) D.German and Brassica nigra L. is now Mutarda nigra (L.) Bernh., which was origianlly described in 1800.  For more information, see: D.A.German.  2022.  Critical notes on Cruciferae.  Turczaninowia 25(2): 55-61.]