text: erigeron canadensis, melilotus albus, oenothera glazioviana, tripleurospermum inodorum, daucus carota, echium vulgare, lolium perenne, poa annua, sisymbrium officinale, trifolium repens, tussilago farfara, atriplex patula, chenopodium album, poa compressa, sonchus oleraceus