fr, pas-de-calais, fagus sylvatica, lonicera periclymenum, carpinus betulus, hedera helix, quercus petraea, quercus robur, pteridium aquilinum, corylus avellana, betula pendula, carex pilulifera, crataegus monogyna, anemone nemorosa, rosa arvensis, carex sylvatica, torminalis glaberrima, ilex aquifolium, euphorbia amygdaloides, teucrium scorodonia, betula pubescens, populus tremula, avenella flexuosa, molinia caerulea, fraxinus excelsior, viola reichenbachiana, frangula alnus, acer campestre, deschampsia flexuosa, dryopteris carthusiana, hypericum pulchrum, polygonatum multiflorum, deschampsia cespitosa, fragaria vesca, carex flacca, holcus mollis, brachypodium sylvaticum, luzula pilosa, crataegus laevigata, potentilla erecta, dryopteris filix-mas, ajuga reptans, prunus spinosa, prunus avium, ligustrum vulgare, castanea sativa, cornus sanguinea, viburnum opulus, calluna vulgaris, arum maculatum, circaea lutetiana, juncus conglomeratus