fr, pas-de-calais, lonicera periclymenum, quercus robur, betula pubescens, carpinus betulus, hedera helix, crataegus monogyna, fraxinus excelsior, corylus avellana, betula pendula, teucrium scorodonia, populus tremula, frangula alnus, pteridium aquilinum, molinia caerulea, fagus sylvatica, holcus mollis, alnus glutinosa, quercus petraea, dryopteris carthusiana, anemone nemorosa, euphorbia amygdaloides, carex sylvatica, ajuga reptans, hyacinthoides non-scripta, rosa arvensis, prunus spinosa, acer campestre, polygonatum multiflorum, cornus sanguinea, ligustrum vulgare, brachypodium sylvaticum, viburnum opulus, ilex aquifolium, deschampsia flexuosa, circaea lutetiana, dryopteris filix-mas, carex pilulifera, athyrium filix-femina, deschampsia cespitosa, viola riviniana, juncus effusus, torminalis glaberrima, potentilla erecta, viola reichenbachiana, juncus conglomeratus, avenella flexuosa, arum maculatum, geum urbanum, hypericum pulchrum, carex remota