agrostis stolonifera, persicaria hydropiper, glyceria fluitans, holcus lanatus, bidens cernuus, oenanthe fistulosa, poa trivialis, cirsium arvense, eleocharis palustris, helosciadium nodiflorum, myosotis scorpioides, polygonum aviculare, ranunculus repens, ranunculus sceleratus, sparganium erectum, stellaria alsine, trifolium repens, juncus articulatus, rumex hydrolapathum, sagittaria sagittifolia