agrostis stolonifera, poa trivialis, glyceria maxima, alopecurus geniculatus, glyceria fluitans, lolium perenne, persicaria hydropiper, spirodela polyrhiza, agrostis capillaris, argentina anserina, cardamine pratensis, eleocharis palustris, myosotis scorpioides, polygonum aviculare, ranunculus repens, ranunculus sceleratus, rumex crispus, veronica catenata