zea mays, bothriochloa ischaemum, kickxia spuria, ajuga chamaepitys, centaurea calcitrapa, chenopodium album, cirsium arvense, convolvulus arvensis, helminthotheca echioides, lactuca serriola, lysimachia arvensis, mentha arvensis, papaver rhoeas, polygonum aviculare, rumex acetosa, setaria pumila, vicia lutea, echium vulgare, scabiosa columbaria