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