text: sparganium erectum, butomus umbellatus, stachys palustris, veronica anagallis-aquatica, scutellaria galericulata, phalaris arundinacea, agrostis stolonifera, bidens garumnae, bidens tripartita, calystegia sepium, lemna minor, lemna turionifera, lycopus exaltatus, mentha arvensis, potamogeton nodosus, salvinia natans, spirodela polyrhiza