poa trivialis, agrostis stolonifera, glyceria fluitans, ranunculus repens, alisma plantago-aquatica, juncus articulatus, persicaria hydropiper, stellaria media, argentina anserina, berula erecta, eleocharis palustris, glyceria maxima, holcus lanatus, lolium perenne, ranunculus sceleratus, trifolium repens, senecio vulgaris