agrostis stolonifera, alopecurus geniculatus, poa trivialis, persicaria hydropiper, glyceria fluitans, holcus lanatus, persicaria amphibia, phragmites australis, poa annua, ranunculus sceleratus, bidens cernuus, glyceria maxima, juncus effusus, phalaris arundinacea, ranunculus repens, stellaria media, capsella bursa-pastoris, juncus bufonius, oenanthe aquatica, polygonum aviculare