poa trivialis, agrostis stolonifera, glyceria fluitans, persicaria hydropiper, trifolium repens, alopecurus geniculatus, argentina anserina, elymus repens, glyceria maxima, holcus lanatus, phalaris arundinacea, ranunculus repens, bolboschoenus maritimus, catabrosa aquatica, rorippa amphibia, rorippa palustris, stellaria media, cirsium arvense, polygonum aviculare, ranunculus sceleratus, rumex conglomeratus