fr, pas-de-calais, glyceria maxima, lemna minor, agrostis stolonifera, ranunculus repens, sparganium erectum, persicaria amphibia, phragmites australis, phalaris arundinacea, alisma plantago-aquatica, spirodela polyrhiza, lemna trisulca, glyceria fluitans, sagittaria sagittifolia, rorippa amphibia, equisetum fluviatile, poa trivialis, myosotis scorpioides, hydrocharis morsus-ranae, galium palustre, nuphar lutea, lythrum salicaria, iris pseudacorus, ceratophyllum demersum, eleocharis palustris, elodea nuttallii, butomus umbellatus, elodea canadensis, urtica dioica, calystegia sepium, oenanthe aquatica, lycopus europaeus, carex acuta, solanum dulcamara, cardamine pratensis, ranunculus circinatus, trifolium repens, holcus lanatus, symphytum officinale, potamogeton natans, juncus effusus, equisetum palustre, alopecurus geniculatus, persicaria hydropiper, sparganium emersum, epilobium hirsutum, carex riparia, potamogeton crispus, lolium perenne, lysimachia vulgaris, glechoma hederacea