cyperus fuscus, lythrum salicaria, plantago uliginosa, rorippa amphibia, rorippa sylvestris, agrostis stolonifera, echinochloa crus-galli, leersia oryzoides, limosella aquatica, persicaria hydropiper, persicaria mitis, phalaris arundinacea, poa trivialis, veronica beccabunga, xanthium orientale, artemisia vulgaris, erigeron annuus, juncus articulatus, ranunculus sceleratus, setaria pumila, solidago canadensis, symphyotrichum novi-belgii