glyceria maxima, stellaria alsine, glyceria fluitans, poa trivialis, ranunculus sceleratus, alopecurus geniculatus, persicaria hydropiper, agrostis stolonifera, phalaris arundinacea, ranunculus repens, argentina anserina, capsella bursa-pastoris, carex hirta, trifolium repens, cirsium arvense, oenanthe aquatica, plantago major, urtica dioica