fr, pas-de-calais, brachypodium pinnatum, cirsium acaulon, leontodon hispidus, centaurea scabiosa, carex flacca, carlina vulgaris, poterium sanguisorba, polygala calcarea, crataegus monogyna, galium pumilum, hippocrepis comosa, gymnadenia conopsea, linum catharticum, pilosella officinarum, juniperus communis, prunus mahaleb, galium pusillum, cornus sanguinea, scorzoneroides hispidula, bupleurum falcatum, festuca ovina, ononis natrix, teucrium chamaedrys, pinus sylvestris, neottia ovata, orchis purpurea, euphorbia cyparissias, scabiosa columbaria, viburnum lantana, lotus corniculatus, solidago virgaurea, bromus erectus, blackstonia perfoliata, koeleria pyramidata, briza media, origanum vulgare, thymus serpyllum, campanula rotundifolia, centaurea jacea, alliaria petiolata, pimpinella saxifraga, galium mollugo, achillea millefolium, epipactis atrorubens, ligustrum vulgare, linum tenuifolium, hypericum perforatum, teucrium montanum, anthyllis vulneraria, stachys recta