poa trivialis, glyceria maxima, persicaria hydropiper, agrostis stolonifera, stellaria alsine, elymus repens, phalaris arundinacea, rorippa amphibia, alopecurus geniculatus, bidens cernuus, bidens tripartita, glyceria fluitans, helosciadium nodiflorum, myosotis scorpioides, oenanthe fistulosa, ranunculus repens, stellaria media, trifolium repens, tephroseris palustris