tussilago farfara, atriplex sagittata, cirsium arvense, elymus repens, lactuca serriola, lepidium draba, lolium perenne, melilotus officinalis, agrostis stolonifera, bromus sterilis, chenopodium album, cichorium intybus, delphinium consolida, euphorbia esula, poa angustifolia, poa compressa, reseda lutea, sisymbrium loeselii, trifolium pratense, tripleurospermum inodorum, viola arvensis