bidens frondosa, urtica dioica, arrhenatherum elatius, atriplex sagittata, echinochloa crus-galli, geranium pratense, lactuca serriola, lolium perenne, persicaria hydropiper, puccinellia distans, centaurea jacea, convolvulus arvensis, galinsoga quadriradiata, phleum pratense, rumex obtusifolius, tripleurospermum inodorum, achillea millefolium, cirsium arvense, plantago major