erigeron annuus, bromus inermis, elymus repens, equisetum arvense, erigeron canadensis, poa pratensis, tanacetum vulgare, carex hirta, centaurea jacea, lactuca serriola, oenothera biennis, plantago lanceolata, achillea collina, arrhenatherum elatius, artemisia vulgaris, capsella bursa-pastoris, carduus acanthoides, chenopodium album, daucus carota, echium vulgare, epilobium parviflorum, euphorbia seguieriana, geum urbanum, lepidium ruderale, medicago falcata, rumex confertus, sisymbrium loeselii, trifolium arvense, trifolium medium, xanthium strumarium