agrostis stolonifera, alopecurus geniculatus, elymus repens, glyceria maxima, poa trivialis, glyceria fluitans, oenanthe fistulosa, persicaria hydropiper, ranunculus sceleratus, cerastium holosteoides, glechoma hederacea, phalaris arundinacea, polygonum aviculare, ranunculus repens, sparganium erectum, stellaria alsine, tephroseris palustris, trifolium repens