fr, pas-de-calais, rosa spinosissima, prunus serotina, anchusa officinalis, corynephorus canescens, mahonia aquifolium, carex arenaria, rosa rugosa, pinus sylvestris, sedum acre, claytonia perfoliata, hydrocotyle vulgaris, calluna vulgaris, calamagrostis epigejos, erodium cicutarium, salix repens, viola tricolor, jasione montana, epipactis palustris, hippophae rhamnoides, oenothera glazioviana, saponaria officinalis, populus alba, erica tetralix, lonicera periclymenum, cytisus scoparius, galium verum, ulex europaeus, hypochaeris radicata, trifolium arvense, jacobaea vulgaris, rumex acetosella, lagurus ovatus, sorbus aucuparia, eryngium maritimum, cynoglossum officinale, betula pendula, berberis vulgaris, erica cinerea, senecio inaequidens, oenothera biennis, claytonia sibirica, molinia caerulea, verbascum thapsus, asparagus officinalis, pinus mugo, myrica gale, rhododendron ponticum, epipactis helleborine, rubus caesius, pinus nigra