glyceria fluitans, agrostis stolonifera, alopecurus geniculatus, elymus repens, poa trivialis, argentina anserina, lolium perenne, myosotis laxa, persicaria hydropiper, phalaris arundinacea, polygonum aviculare, ranunculus repens, rorippa amphibia, stellaria media, alisma plantago-aquatica