glyceria maxima, lolium perenne, phalaris arundinacea, poa trivialis, agrostis stolonifera, glyceria fluitans, persicaria hydropiper, alopecurus geniculatus, holcus lanatus, ranunculus repens, dactylis glomerata, elymus repens, juncus effusus, oenanthe aquatica, persicaria amphibia, phragmites australis, poa annua, rumex hydrolapathum, sparganium erectum, stellaria media, trifolium repens, iris pseudacorus, juncus articulatus, sagina procumbens