glyceria maxima, phalaris arundinacea, stellaria media, agrostis stolonifera, alopecurus pratensis, elymus repens, poa trivialis, holcus lanatus, dactylis glomerata, festuca rubra, glyceria fluitans, persicaria hydropiper, rorippa amphibia, urtica dioica, vicia cracca, galium aparine, ranunculus sceleratus, sonchus asper