glyceria fluitans, myosotis scorpioides, agrostis stolonifera, ranunculus repens, alopecurus geniculatus, elymus repens, equisetum fluviatile, holcus lanatus, poa trivialis, persicaria hydropiper, phalaris arundinacea, berula erecta, cirsium arvense, equisetum palustre, helosciadium nodiflorum