erigeron canadensis, artemisia vulgaris, achillea millefolium, crepis biennis, fallopia convolvulus, lactuca serriola, poa compressa, polygonum aviculare, senecio vulgaris, amaranthus albus, arrhenatherum elatius, calamagrostis epigejos, capsella bursa-pastoris, carduus acanthoides, chenopodium album, lepidium draba, lolium perenne