triticum aestivum, galium aparine, apera spica-venti, convolvulus arvensis, alopecurus pratensis, centaurea cyanus, cirsium arvense, crepis biennis, elymus repens, equisetum arvense, lolium perenne, myosotis arvensis, papaver rhoeas, rumex crispus, tanacetum vulgare, tussilago farfara, vicia sativa, viola arvensis