leersia oryzoides, alisma plantago-aquatica, limosella aquatica, lindernia dubia, callitriche cophocarpa, eleocharis ovata, lythrum portula, persicaria hydropiper, persicaria maculosa, ranunculus sceleratus, rorippa islandica, alopecurus aequalis, eleocharis acicularis, oenanthe aquatica