glyceria fluitans, persicaria hydropiper, alopecurus geniculatus, poa trivialis, agrostis stolonifera, cardamine pratensis, elymus repens, oenanthe fistulosa, persicaria minor, ranunculus repens, ranunculus sceleratus, stellaria media, trifolium repens, bidens cernuus, bidens tripartita, helosciadium nodiflorum, holcus lanatus, juncus bufonius, persicaria lapathifolia, polygonum aviculare, sagittaria sagittifolia