bidens frondosa, eragrostis pilosa, erigeron annuus, plantago major, eragrostis minor, galinsoga quadriradiata, persicaria mitis, rorippa palustris, setaria pumila, amaranthus retroflexus, artemisia vulgaris, dactylis glomerata, daucus carota, echinochloa crus-galli, erigeron canadensis, erysimum cheiranthoides, lolium perenne, medicago lupulina, poa annua, poa compressa, solidago canadensis, stellaria media, tripleurospermum inodorum, digitaria sanguinalis, galeopsis pubescens, lactuca serriola, matricaria discoidea, oenothera biennis, oxybasis glauca, persicaria lapathifolia, plantago lanceolata, robinia pseudoacacia, stellaria aquatica, tanacetum vulgare, trifolium repens