phalaris arundinacea, agrostis stolonifera, alisma plantago-aquatica, bidens tripartita, butomus umbellatus, echinochloa crus-galli, glyceria maxima, inula britannica, lipandra polysperma, lythrum virgatum, persicaria amphibia, persicaria hydropiper, persicaria minor, rorippa palustris, stachys palustris, xanthium strumarium