sisymbrium altissimum, chenopodium album, convolvulus arvensis, tripleurospermum inodorum, achillea millefolium, arrhenatherum elatius, atriplex sagittata, cirsium arvense, poa pratensis, artemisia vulgaris, avena fatua, bromus tectorum, calamagrostis epigejos, capsella bursa-pastoris, cichorium intybus, cirsium vulgare, erigeron canadensis, lactuca serriola, lepidium draba, lepidium ruderale, melilotus officinalis, pastinaca sativa, polygonum aviculare, reseda lutea, senecio viscosus, solidago canadensis, thlaspi arvense