fr, pas-de-calais, brachypodium pinnatum, cirsium acaulon, polygala calcarea, hippocrepis comosa, blackstonia perfoliata, carex flacca, leontodon hispidus, centaurea scabiosa, scabiosa columbaria, poterium sanguisorba, festuca ovina, pilosella officinarum, briza media, linum catharticum, bromus erectus, origanum vulgare, carlina vulgaris, scorzoneroides hispidula, thesium humifusum, thymus praecox, pimpinella saxifraga, lotus corniculatus, gymnadenia conopsea, reseda lutea, galium pumilum, eryngium campestre, campanula rotundifolia, anacamptis pyramidalis, ophrys apifera, bupleurum falcatum, dactylis glomerata, centaurea nigra, orchis purpurea, galium mollugo, anthyllis vulneraria, teucrium chamaedrys, centaurea jacea, achillea millefolium, picris hieracioides, plantago lanceolata, daucus carota, hypericum perforatum, galium pusillum, primula veris, crataegus monogyna, helictochloa pratensis, knautia arvensis, onobrychis viciifolia, genista tinctoria, juniperus communis