ambrosia artemisiifolia, echinochloa crus-galli, eragrostis pilosa, plantago lanceolata, polygonum aviculare, arctium lappa, calamagrostis epigejos, chenopodium album, crepis tectorum, daucus carota, digitaria ischaemum, erigeron annuus, erigeron canadensis, lotus corniculatus, persicaria minor, plantago major, poa annua, portulaca oleracea, ranunculus acris, rumex obtusifolius, setaria viridis, trifolium repens