elodea nuttallii, oenanthe aquatica, sparganium erectum, glyceria maxima, sagittaria sagittifolia, butomus umbellatus, eleocharis palustris, sparganium emersum, alisma plantago-aquatica, bidens cernuus, equisetum fluviatile, glyceria fluitans, hydrocotyle vulgaris, myosotis scorpioides