fr, pas-de-calais, carex flacca, brachypodium pinnatum, poterium sanguisorba, leontodon hispidus, briza media, cirsium acaulon, festuca ovina, lotus corniculatus, linum catharticum, pilosella officinarum, scorzoneroides hispidula, blackstonia perfoliata, scabiosa columbaria, hippocrepis comosa, carlina vulgaris, centaurea nemoralis, pimpinella saxifraga, origanum vulgare, centaurea jacea, polygala calcarea, bromus erectus, plantago lanceolata, centaurea nigra, helianthemum nummularium, centaurea scabiosa, polygala vulgaris, thymus praecox, viola hirta, achillea millefolium, daucus carota, gymnadenia conopsea, dactylis glomerata, hypericum perforatum, galium pumilum, primula veris, succisa pratensis, campanula rotundifolia, ranunculus bulbosus, genista tinctoria, crataegus monogyna, helictochloa pratensis, ononis spinosa, galium pusillum, festuca rubra, medicago lupulina, prunella vulgaris, euphrasia stricta, anthyllis vulneraria, teucrium chamaedrys, thesium humifusum