rorippa amphibia, eleocharis acicularis, persicaria hydropiper, phalaris arundinacea, alisma gramineum, alisma plantago-aquatica, bidens tripartita, bolboschoenus maritimus, butomus umbellatus, echinochloa crus-galli, glyceria maxima, lythrum virgatum, oenanthe aquatica, persicaria amphibia, persicaria minor, sparganium erectum