text: erigeron annuus, ambrosia artemisiifolia, artemisia vulgaris, elymus repens, cichorium intybus, erigeron canadensis, lactuca serriola, melilotus officinalis, urtica dioica, acer negundo, armoracia rusticana, cirsium vulgare, geum urbanum, hypericum perforatum, oenothera biennis, persicaria lapathifolia, verbascum thapsus