artemisia vulgaris, erigeron canadensis, lactuca serriola, lolium perenne, sisymbrium loeselii, sonchus oleraceus, atriplex patula, atriplex sagittata, calystegia sepium, chelidonium majus, elymus repens, erysimum cheiranthoides, galinsoga parviflora, senecio viscosus, sonchus arvensis, chenopodium album, cirsium vulgare, medicago lupulina, poa palustris, verbascum thapsus