Leaves and stem of brassica tournefortii
, a Eurasian species, are covered with short, spreading, bristly hairs. Leaves are mainly basal; here they are pinnately lobed, with between four and ten pairs of side lobes, becoming larger towards the tip, and a rounded terminal lobe. Stem leaves are smaller, unlobed, and tapering at the base. All leaves are lined by small, sharp teeth.
Flowers have hairless, reddish sepals and clawed yellow petals, paler than for other brassica species. Petals are longer than the sepals, around a quarter of an inch. Fruits are slender, linear, cylindrical pods up to 3 inches long, slightly narrowed between the seeds, spreading to ascending, attached by stalks around 0.6 inches. Fruits have a tapering terminal segment, half an inch long.