glyceria fluitans, poa trivialis, alopecurus geniculatus, agrostis stolonifera, stellaria media, elymus repens, glechoma hederacea, lolium perenne, persicaria hydropiper, phalaris arundinacea, poa annua, ranunculus repens, ranunculus sceleratus, trifolium repens, urtica dioica, cirsium arvense, holcus lanatus, lipandra polysperma, persicaria mitis, plantago major, polygonum aviculare, rorippa palustris, rumex maritimus