fr, pas-de-calais, lonicera periclymenum, quercus robur, fagus sylvatica, corylus avellana, hedera helix, carpinus betulus, hyacinthoides non-scripta, betula pubescens, castanea sativa, polygonatum multiflorum, pteridium aquilinum, holcus mollis, teucrium scorodonia, deschampsia flexuosa, betula pendula, fraxinus excelsior, quercus petraea, anemone nemorosa, sorbus aucuparia, acer pseudoplatanus, avenella flexuosa, ilex aquifolium, prunus avium, luzula pilosa, dryopteris carthusiana, lamium galeobdolon, dryopteris filix-mas, athyrium filix-femina, arum maculatum, vaccinium myrtillus, crataegus monogyna, milium effusum, frangula alnus, carex pilulifera, euphorbia amygdaloides, convallaria majalis, oxalis acetosella, circaea lutetiana, carex sylvatica, viola riviniana, populus tremula, rabelera holostea, adoxa moschatellina, mespilus germanica, ajuga reptans, dryopteris dilatata, geum urbanum, glechoma hederacea, sambucus nigra, ficaria verna