papaver rhoeas, elymus repens, apera spica-venti, cirsium arvense, equisetum arvense, galium aparine, matricaria chamomilla, sinapis arvensis, sonchus arvensis, stellaria media, aphanes arvensis, capsella bursa-pastoris, convolvulus arvensis, fallopia convolvulus, fumaria officinalis, myosotis arvensis, persicaria amphibia, polygonum aviculare, rumex crispus, tussilago farfara, veronica arvensis, ranunculus arvensis