artemisia vulgaris, chenopodium album, elymus repens, oenothera biennis, sisymbrium loeselii, achillea millefolium, carduus acanthoides, poa compressa, anthriscus sylvestris, arctium lappa, atriplex patula, atriplex tatarica, berteroa incana, bromus tectorum, capsella bursa-pastoris, cirsium arvense, cirsium vulgare, daucus carota, erigeron canadensis, galinsoga parviflora, hordeum murinum, lactuca serriola, lamium album, lepidium ruderale, lolium perenne, medicago lupulina, melilotus officinalis, plantago major, poa pratensis, setaria verticillata, solidago canadensis, sonchus oleraceus, tanacetum vulgare, tripleurospermum inodorum, tussilago farfara, urtica dioica, vicia villosa