atriplex sagittata, centaurea stoebe, atriplex prostrata, calendula arvensis, lolium perenne, poa annua, poa palustris, polygonum aviculare, solanum nigrum, achillea millefolium, amaranthus retroflexus, arctium lappa, artemisia absinthium, chenopodium suecicum, cirsium arvense, fumaria officinalis, lotus corniculatus, medicago lupulina, phleum pratense, plantago lanceolata, plantago media, potentilla reptans, senecio vulgaris, sisymbrium loeselii, sisymbrium officinale, tanacetum vulgare, tripleurospermum inodorum, tussilago farfara, capsella bursa-pastoris, daucus carota, erigeron canadensis, lactuca serriola, leonurus cardiaca, matricaria discoidea