zea mays, kickxia spuria, avena fatua, bothriochloa ischaemum, cirsium arvense, convolvulus arvensis, helminthotheca echioides, lactuca serriola, lysimachia foemina, polygonum bellardii, senecio vulgaris, setaria pumila, sonchus oleraceus, stachys annua, verbena officinalis, rumex crispus