Stems: erect, hispid, with scattered stiff hairs. Leaves: oval, coarsely dentate, the basal ones pinnatifid. Flowers: showy, yellow, in elongated racemes. Fruit: the siliques elongated, sessile, tipped with a flattened conic beak. Not indigenous.

A handsome species bearing showy yellow flowers in terminal racemes, and having large oval leaves that are very coarsely toothed, rough to the touch, and conspicuously veined. The basal leaves are lobed. Like all the Mustards, it has four cruciform petals. This is an introduced plant.