fr, pas-de-calais, lemna minor, persicaria amphibia, phragmites australis, sparganium erectum, alisma plantago-aquatica, iris pseudacorus, galium palustre, lythrum salicaria, eleocharis palustris, agrostis stolonifera, glyceria maxima, rorippa amphibia, phalaris arundinacea, lycopus europaeus, myosotis scorpioides, lemna trisulca, carex riparia, hydrocharis morsus-ranae, oenanthe fistulosa, solanum dulcamara, butomus umbellatus, lysimachia vulgaris, nuphar lutea, equisetum fluviatile, schoenoplectus lacustris, ranunculus repens, glyceria fluitans, spirodela polyrhiza, typha angustifolia, calystegia sepium, ceratophyllum demersum, epilobium hirsutum, rumex hydrolapathum, stachys palustris, elodea canadensis, oenanthe aquatica, potamogeton natans, bolboschoenus maritimus, poa trivialis, myriophyllum spicatum, typha latifolia, ranunculus flammula, sagittaria sagittifolia, nymphaea alba, carex acuta, berula erecta, symphytum officinale, stuckenia pectinata, argentina anserina, cardamine pratensis