glyceria fluitans, ranunculus repens, agrostis stolonifera, alopecurus geniculatus, holcus lanatus, poa trivialis, glechoma hederacea, persicaria hydropiper, argentina anserina, cirsium arvense, myosotis scorpioides, polygonum aviculare, rorippa palustris, stellaria alsine, stellaria media, trifolium repens, rorippa amphibia