fr, pas-de-calais, dactylis glomerata, linum catharticum, lotus corniculatus, plantago lanceolata, medicago lupulina, leontodon hispidus, arrhenatherum elatius, poterium sanguisorba, jacobaea vulgaris, origanum vulgare, crataegus monogyna, centaurea scabiosa, carex flacca, briza media, brachypodium pinnatum, blackstonia perfoliata, agrimonia eupatoria, anacamptis pyramidalis, achillea millefolium, prunella vulgaris, galium verum, cirsium arvense, agrostis stolonifera, trifolium pratense, daucus carota, centaurea nigra, festuca rubra, reseda lutea, scorzoneroides hispidula, thymus praecox, galium mollugo, holcus lanatus, ononis spinosa, bromus erectus, cirsium acaulon, odontites vernus, trifolium repens, pastinaca sativa, plantago media, festuca ovina, cirsium vulgare, viola hirta, urtica dioica, poa pratensis, ophrys apifera, clinopodium vulgare, primula veris, clematis vitalba, centaurea nemoralis, potentilla reptans