poa trivialis, agrostis stolonifera, alopecurus geniculatus, glyceria maxima, glyceria fluitans, ranunculus repens, cardamine pratensis, eleocharis palustris, equisetum fluviatile, persicaria amphibia, persicaria hydropiper, poa annua, ranunculus sceleratus, rorippa amphibia, stellaria media, nasturtium microphyllum, polygonum aviculare, rorippa palustris