fr, pas-de-calais, ranunculus repens, agrostis stolonifera, poa trivialis, trifolium repens, cirsium arvense, lolium perenne, elymus repens, argentina anserina, alopecurus geniculatus, plantago major, holcus lanatus, ranunculus acris, rumex crispus, plantago lanceolata, potentilla reptans, rumex acetosa, alopecurus pratensis, urtica dioica, persicaria amphibia, trifolium pratense, phalaris arundinacea, carex hirta, phleum pratense, scorzoneroides autumnalis, poa pratensis, festuca rubra, cardamine pratensis, cerastium holosteoides, poa annua, bellis perennis, hordeum secalinum, agrostis capillaris, dactylis glomerata, achillea millefolium, vicia cracca, bromus hordeaceus, eleocharis palustris, cynosurus cristatus, geranium dissectum, lolium pratense, trifolium dubium, trifolium fragiferum, arrhenatherum elatius, galium palustre, glyceria fluitans, polygonum aviculare, phragmites australis, symphytum officinale, juncus effusus, anthoxanthum odoratum