poa trivialis, ranunculus sceleratus, persicaria hydropiper, phalaris arundinacea, alopecurus geniculatus, leptobryum pyriforme, catabrosa aquatica, cerastium holosteoides, elymus repens, glyceria fluitans, physcomitrium pyriforme, stellaria media, agrostis stolonifera, bolboschoenus maritimus, polygonum aviculare, ranunculus repens, sparganium erectum, trifolium repens, bidens tripartita, butomus umbellatus, ranunculus acris