alopecurus geniculatus, poa trivialis, persicaria hydropiper, glyceria fluitans, glyceria maxima, ranunculus repens, ranunculus sceleratus, capsella bursa-pastoris, cerastium holosteoides, persicaria amphibia, phalaris arundinacea, polygonum aviculare, rorippa palustris, stellaria media, plantago major, sagittaria sagittifolia