fr, pas-de-calais, prunus serotina, rosa spinosissima, carex arenaria, corynephorus canescens, pinus sylvestris, calamagrostis epigejos, calluna vulgaris, mahonia aquifolium, salix repens, anchusa officinalis, hydrocotyle vulgaris, lonicera periclymenum, erica tetralix, betula pendula, hypochaeris radicata, rumex acetosella, rosa rugosa, jacobaea vulgaris, sorbus aucuparia, quercus robur, erodium cicutarium, molinia caerulea, ulex europaeus, pinus nigra, jasione montana, claytonia perfoliata, aira praecox, sedum acre, cytisus scoparius, hippophae rhamnoides, viola tricolor, erica cinerea, pinus pinaster, senecio inaequidens, galium verum, cynoglossum officinale, amelanchier lamarckii, epipactis palustris, agrostis capillaris, veronica officinalis, populus alba, luzula campestris, betula pubescens, asparagus officinalis, rubus caesius, myrica gale, quercus rubra, oenothera glazioviana, ceratocapnos claviculata, polypodium vulgare