fr, pas-de-calais, brachypodium pinnatum, centaurea scabiosa, carex flacca, carlina vulgaris, leontodon hispidus, cirsium acaulon, poterium sanguisorba, blackstonia perfoliata, gymnadenia conopsea, linum catharticum, origanum vulgare, crataegus monogyna, hippocrepis comosa, cornus sanguinea, polygala calcarea, scorzoneroides hispidula, pilosella officinarum, orchis purpurea, scabiosa columbaria, neottia ovata, bupleurum falcatum, festuca ovina, prunus mahaleb, ononis natrix, galium pumilum, briza media, centaurea jacea, bromus erectus, lotus corniculatus, hypericum perforatum, juniperus communis, pimpinella saxifraga, galium pusillum, teucrium chamaedrys, eryngium campestre, viburnum lantana, euphorbia cyparissias, euphrasia stricta, reseda lutea, koeleria pyramidata, achillea millefolium, orchis militaris, anacamptis pyramidalis, ononis spinosa, jacobaea erucifolia, galium mollugo, linum tenuifolium, ligustrum vulgare, clematis vitalba, pinus sylvestris