persicaria hydropiper, agrostis stolonifera, glyceria fluitans, poa trivialis, lolium perenne, persicaria amphibia, bidens cernuus, elymus repens, glyceria maxima, holcus lanatus, phalaris arundinacea, ranunculus repens, trifolium repens, cerastium holosteoides, equisetum arvense, juncus articulatus, myosotis scorpioides, oenanthe fistulosa, persicaria maculosa, polygonum aviculare, ranunculus sceleratus, rorippa amphibia, stellaria media, juncus effusus, rorippa palustris