The most widely used are white mustard (Brassica hirta), Indian or brown mustard (Brassica juncea), and black mustard (Brassica nigra), which gives off a particularly virulent essence capable of causing blisters on the skin.
Visplašāk tiek lietota baltā sinepe (Brassica hirta), Sareptas sinepe (Brassica juncea) un melnā sinepe (Brassica nigra) — tā izdala sevišķi kodīgu esenci, kuras iedarbībā uz ādas var parādīties tulznas.