poa trivialis, agrostis stolonifera, alopecurus geniculatus, glyceria fluitans, elymus repens, holcus lanatus, juncus effusus, lolium perenne, myosotis laxa, oenanthe aquatica, persicaria hydropiper, ranunculus repens, ranunculus sceleratus, rorippa amphibia, rorippa palustris, rumex obtusifolius, stellaria media, trifolium repens, polygonum aviculare