centaurea cyanus, fallopia convolvulus, viola arvensis, galeopsis segetum, galium aparine, lapsana communis, aphanes arvensis, bromus hordeaceus, bromus secalinus, lepidium campestre, polygonum aviculare, rumex acetosella, scleranthus annuus, valerianella locusta, vicia hirsuta, anthemis arvensis, chenopodium album, veronica arvensis