Sinapis L. >

Sepals spreading. Beak of the fruit 10–15 mm long Sinapis
Upper leaves sessile, simple, toothed. Fruit 1–3 mm wide; beak scarcely compressed, shorter than the valves. Seeds more than 8, reddish-brown. Widespread. Weed of cultivation and waste places. Introd. from Europe. Charlock Sinapis arvensis