persicaria hydropiper, poa trivialis, agrostis stolonifera, alopecurus geniculatus, holcus lanatus, phalaris arundinacea, glyceria fluitans, lolium perenne, ranunculus repens, stellaria media, trifolium repens, argentina anserina, cardamine pratensis, cerastium holosteoides, eleocharis palustris, phleum pratense, poa annua, poa pratensis, polygonum aviculare