fr, pas-de-calais, agrostis stolonifera, trifolium repens, ranunculus repens, trifolium fragiferum, argentina anserina, eleocharis palustris, lolium perenne, juncus articulatus, poa trivialis, juncus gerardii, holcus lanatus, alopecurus geniculatus, scorzoneroides autumnalis, cynosurus cristatus, carex hirta, juncus bufonius, bellis perennis, eleocharis uniglumis, ranunculus flammula, ranunculus acris, rumex crispus, festuca rubra, ranunculus sardous, plantago major, poa pratensis, oenanthe fistulosa, cirsium arvense, galium palustre, elymus repens, plantago lanceolata, trifolium pratense, persicaria amphibia, cardamine pratensis, glyceria fluitans, potentilla reptans, rumex conglomeratus, bolboschoenus maritimus, juncus effusus, jacobaea aquatica, anthoxanthum odoratum, rumex acetosa, hordeum secalinum, juncus inflexus, lotus tenuis, poa annua, myosotis laxa, agrostis capillaris, phleum pratense, carex distans, silene flos-cuculi