agrostis stolonifera, alopecurus geniculatus, glyceria fluitans, holcus lanatus, phalaris arundinacea, lolium perenne, elymus repens, bidens cernuus, catabrosa aquatica, glyceria maxima, oenanthe aquatica, persicaria hydropiper, poa annua, ranunculus repens, stellaria media, urtica dioica, oenanthe fistulosa, stellaria alsine