fr, pas-de-calais, lonicera periclymenum, crataegus monogyna, quercus robur, hedera helix, teucrium scorodonia, hyacinthoides non-scripta, prunus spinosa, pteridium aquilinum, betula pubescens, carpinus betulus, ligustrum vulgare, acer campestre, carex flacca, corylus avellana, rosa arvensis, euphorbia amygdaloides, potentilla erecta, holcus mollis, agrostis capillaris, brachypodium sylvaticum, viola riviniana, anthoxanthum odoratum, torminalis glaberrima, carex sylvatica, quercus petraea, fraxinus excelsior, poa trivialis, ilex aquifolium, stachys officinalis, fagus sylvatica, succisa pratensis, holcus lanatus, euonymus europaeus, arum maculatum, fragaria vesca, betula pendula, hypericum pulchrum, molinia caerulea, ajuga reptans, cornus sanguinea, juncus conglomeratus, anemone nemorosa, agrostis canina, viola reichenbachiana, frangula alnus, geum urbanum, danthonia decumbens, ruscus aculeatus, crataegus laevigata, melica uniflora