poa trivialis, glyceria fluitans, agrostis stolonifera, ranunculus repens, cardamine pratensis, eleocharis palustris, stellaria alsine, trifolium repens, alopecurus geniculatus, oenanthe fistulosa, stellaria media, argentina anserina, cirsium arvense, elymus repens, holcus lanatus, persicaria hydropiper, polygonum aviculare, phalaris arundinacea