text: zea mays, convolvulus arvensis, senecio vulgaris, bothriochloa ischaemum, chaenorhinum minus, cirsium arvense, cynodon dactylon, equisetum arvense, lysimachia arvensis, mentha arvensis, mercurialis annua, polygonum bellardii, setaria pumila, solanum nigrum, sonchus oleraceus, verbena officinalis, veronica persica, calystegia sepium