fr, pas-de-calais, brachypodium pinnatum, poterium sanguisorba, carex flacca, briza media, centaurea nemoralis, linum catharticum, festuca ovina, leontodon hispidus, centaurea nigra, lotus corniculatus, blackstonia perfoliata, cirsium acaulon, crataegus monogyna, thymus praecox, primula veris, hippocrepis comosa, quercus robur, origanum vulgare, hypericum perforatum, pilosella officinarum, scorzoneroides hispidula, succisa pratensis, helianthemum nummularium, plantago lanceolata, viola hirta, dactylis glomerata, neottia ovata, prunella vulgaris, bromus erectus, cornus sanguinea, ligustrum vulgare, polygala vulgaris, carlina vulgaris, galium pumilum, achillea millefolium, agrimonia eupatoria, scabiosa columbaria, arrhenatherum elatius, gymnadenia conopsea, hedera helix, viburnum lantana, centaurea jacea, fraxinus excelsior, prunus spinosa, corylus avellana, pimpinella saxifraga, daucus carota, galium pusillum, orchis purpurea, galium mollugo