bromus scoparius, hordeum murinum, bromus diandrus, poa annua, calendula arvensis, carduus pycnocephalus, echium plantagineum, geranium purpureum, lolium rigidum, sisymbrium officinale, urospermum picroides, anthemis arvensis, capsella bursa-pastoris, erodium moschatum, geranium lucidum, malva parviflora, papaver rhoeas