agrostis stolonifera, glyceria fluitans, poa trivialis, alopecurus geniculatus, helosciadium nodiflorum, holcus lanatus, alopecurus pratensis, bidens cernuus, juncus articulatus, persicaria hydropiper, ranunculus repens, ranunculus sceleratus, rorippa amphibia, spirodela polyrhiza, stellaria alsine, trifolium repens, cirsium arvense, persicaria minor, polygonum aviculare, rorippa palustris