erigeron annuus, melilotus albus, ceratodon purpureus, cichorium intybus, daucus carota, plantago lanceolata, artemisia vulgaris, bromus sterilis, echium vulgare, hypericum perforatum, lolium perenne, petrorhagia prolifera, plantago major, trifolium repens, ambrosia artemisiifolia, cirsium arvense, erigeron canadensis, tanacetum vulgare