poa trivialis, glyceria maxima, trifolium repens, glyceria fluitans, phalaris arundinacea, agrostis stolonifera, alopecurus geniculatus, eleocharis palustris, holcus lanatus, elymus repens, physcomitrium pyriforme, juncus articulatus, lolium perenne, oenanthe fistulosa, persicaria hydropiper, ranunculus repens, sparganium erectum, rumex hydrolapathum