centaurea cyanus, anthemis arvensis, apera spica-venti, arabidopsis thaliana, poa trivialis, viola arvensis, aphanes arvensis, capsella bursa-pastoris, cerastium arvense, chenopodium album, fallopia convolvulus, lysimachia arvensis, myosotis arvensis, papaver rhoeas, persicaria maculosa, sherardia arvensis