Common Name: wild mustard, charlock, field mustardScientific Name: Brassica kaber (DC.) L.C. Wheeler, syn. Brassica arvensis, Sinapis arvensisFamily Name: Brassicaceae (Cruciferae) - Mustard FamilyIdentification NotesLife Cycleintroduced winter or summer annual, reproducing by seed Stemsupright, branched above, bristly hairs near base (may be absent) Leaves alternate, oval to obovate; lower leaves petioled, irregularly lobed with toothed margins; upper leaves small, unlobed, clasping or with short petioled Flowers4-petaled, yellow; terminal clusters Seed Podssilique, round, 4-sided beak at tip