triticum aestivum, apera spica-venti, centaurea cyanus, cirsium arvense, convolvulus arvensis, galium aparine, papaver rhoeas, poa angustifolia, stellaria media, viola arvensis, artemisia vulgaris, elymus repens, myosotis arvensis, persicaria maculosa, sonchus oleraceus, lapsana communis, plantago major, veronica polita