fr, pas-de-calais, fagus sylvatica, carpinus betulus, lonicera periclymenum, quercus robur, hedera helix, anemone nemorosa, crataegus monogyna, pteridium aquilinum, carex sylvatica, euphorbia amygdaloides, corylus avellana, acer campestre, fraxinus excelsior, quercus petraea, viola reichenbachiana, teucrium scorodonia, holcus mollis, deschampsia flexuosa, ilex aquifolium, avenella flexuosa, hyacinthoides non-scripta, melica uniflora, milium effusum, brachypodium sylvaticum, betula pubescens, fragaria vesca, dryopteris filix-mas, arum maculatum, deschampsia cespitosa, viola riviniana, rabelera holostea, dryopteris carthusiana, crataegus laevigata, polygonatum multiflorum, rosa arvensis, betula pendula, circaea lutetiana, carex pilulifera, luzula pilosa, agrostis capillaris, lamium galeobdolon, mercurialis perennis, ajuga reptans, prunus spinosa, oxalis acetosella, athyrium filix-femina, populus tremula, geum urbanum, anthoxanthum odoratum, cornus sanguinea