fr, pas-de-calais, althaea officinalis, agrostis stolonifera, ranunculus repens, phragmites australis, oenanthe fistulosa, persicaria amphibia, iris pseudacorus, poa trivialis, eleocharis palustris, calystegia sepium, lythrum salicaria, carex riparia, galium palustre, phalaris arundinacea, symphytum officinale, trifolium repens, argentina anserina, ranunculus flammula, rumex crispus, lycopus europaeus, jacobaea aquatica, lysimachia vulgaris, cardamine pratensis, lolium perenne, plantago major, juncus subnodulosus, elymus repens, stachys palustris, potentilla reptans, epilobium hirsutum, holcus lanatus, cirsium arvense, ranunculus acris, alopecurus geniculatus, bolboschoenus maritimus, alisma plantago-aquatica, silene flos-cuculi, glyceria fluitans, trifolium fragiferum, carex vulpina, pulicaria dysenterica, plantago lanceolata, glyceria maxima, myosotis scorpioides, butomus umbellatus, rumex conglomeratus, juncus inflexus, ranunculus sardous, hydrocotyle vulgaris, carex disticha