===Sinapis arvensis === {{Argicultural pest | common_name = Charlock | latin_name =Sinapis arvensis | image =Herik 17-10-2005 13.59.40.JPG | range = Native to Europe. Naturalized throughout much of North America. | description = Charlock, also known as wild mustard, is an annual or winter annual up to 1 m tall. The stems are erect with coarse spreading hairs near the base. The basal leaves are pinnatifid to dentate. The cauline leaves are much reduced and are short petiolate to sessile but not auriculate-clasping. The inflorescence is a raceme made up of yellow flowers having four petals. The fruit is a silique 3-5 cm long with a beak 1-2 cm long that is flattened-quadrangular. The valves of the silique are glabrous or rarely bristly, three to five nerved. The seeds are smooth 1-1.5 mm in diameter. | control = Can be controlled by tilling the affected areas. }}
