chenopodium opulifolium, bromus hordeaceus, chenopodium album, achillea millefolium, anthemis arvensis, arctium tomentosum, argentina anserina, artemisia absinthium, capsella bursa-pastoris, convolvulus arvensis, echinochloa crus-galli, erigeron canadensis, lolium perenne, malva neglecta, matricaria discoidea, medicago lupulina, onopordum acanthium, persicaria mitis, plantago lanceolata, poa annua, poa compressa, polygonum aviculare, sambucus nigra, trifolium pratense