corispermum intermedium, erigeron canadensis, sisymbrium altissimum, apera spica-venti, chenopodium album, medicago lupulina, melilotus albus, achillea millefolium, artemisia vulgaris, capsella bursa-pastoris, echium vulgare, elymus repens, equisetum arvense, fallopia convolvulus, lactuca serriola, lepidium ruderale, lolium perenne, poa annua, poa compressa, senecio vulgaris, spergula arvensis, tripleurospermum inodorum, tussilago farfara