fr, pas-de-calais, poa trivialis, lolium perenne, agrostis stolonifera, hordeum secalinum, ranunculus repens, trifolium repens, elymus repens, cirsium arvense, plantago lanceolata, trifolium fragiferum, ranunculus acris, holcus lanatus, ranunculus sardous, geranium dissectum, rumex crispus, bellis perennis, trifolium pratense, dactylis glomerata, althaea officinalis, poa pratensis, plantago major, potentilla reptans, bromus hordeaceus, festuca rubra, alopecurus geniculatus, rumex acetosa, alopecurus pratensis, cynosurus cristatus, arrhenatherum elatius, convolvulus arvensis, argentina anserina, cerastium holosteoides, phragmites australis, juncus gerardii, scorzoneroides autumnalis, phleum pratense, poa annua, alopecurus bulbosus, trifolium dubium, carex hirta, lotus corniculatus, anthoxanthum odoratum, persicaria amphibia, cardamine pratensis, pulicaria dysenterica, achillea millefolium, lolium pratense, vicia sativa, urtica dioica, centaurea jacea