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