lolium perenne, acorus calamus, glyceria maxima, poa trivialis, agrostis stolonifera, persicaria hydropiper, alopecurus geniculatus, berula erecta, glyceria fluitans, ranunculus repens, eleocharis palustris, glechoma hederacea, oenanthe fistulosa, plantago major, sparganium erectum, stellaria media, trifolium repens, matricaria chamomilla, rorippa palustris