agrostis stolonifera, poa trivialis, glyceria maxima, phalaris arundinacea, ranunculus repens, elymus repens, glyceria fluitans, festuca rubra, lolium perenne, persicaria hydropiper, argentina anserina, cerastium holosteoides, galium palustre, myosotis scorpioides, persicaria maculosa, polygonum aviculare, stachys palustris