a plant, Diplotaxis muralis, naturalized in Britain and S and central Europe, having pale yellow flowers, cylindrical seed pods, and a disagreeable smell when bruised: family Brassicaceae (crucifers)
2.
any of various other ill-smelling plants, such as mayweed
stinkweed in American English
(ˈstɪŋkˌwid)
noun
any of various plants, as the jimson weed or dog fennel, having a foul or strong smell