gratiola officinalis, bolboschoenus maritimus, inula britannica, alisma gramineum, alisma plantago-aquatica, althaea officinalis, atriplex prostrata, bidens tripartita, butomus umbellatus, drepanocladus polygamus, lythrum virgatum, persicaria minor, phalaris arundinacea, sagittaria sagittifolia, stachys palustris