zea mays, elymus repens, galinsoga parviflora, persicaria amphibia, achillea millefolium, artemisia vulgaris, capsella bursa-pastoris, centaurea cyanus, cirsium arvense, convolvulus arvensis, datura stramonium, equisetum arvense, erysimum cheiranthoides, fallopia convolvulus, lamium amplexicaule, rumex crispus, senecio vulgaris, setaria pumila, sinapis arvensis, solanum nigrum, sonchus oleraceus