fr, pas-de-calais, lonicera periclymenum, hedera helix, fagus sylvatica, quercus robur, hyacinthoides non-scripta, carpinus betulus, crataegus monogyna, corylus avellana, fraxinus excelsior, betula pubescens, quercus petraea, pteridium aquilinum, anemone nemorosa, holcus mollis, teucrium scorodonia, ilex aquifolium, viola riviniana, dryopteris filix-mas, acer campestre, arum maculatum, carex sylvatica, melica uniflora, viola reichenbachiana, euphorbia amygdaloides, deschampsia flexuosa, betula pendula, avenella flexuosa, mercurialis perennis, polygonatum multiflorum, sorbus aucuparia, brachypodium sylvaticum, geum urbanum, milium effusum, fragaria vesca, oxalis acetosella, circaea lutetiana, rabelera holostea, euonymus europaeus, ajuga reptans, poa nemoralis, ligustrum vulgare, prunus spinosa, galium aparine, prunus avium, acer pseudoplatanus, lamium galeobdolon, rosa arvensis, torminalis glaberrima, luzula pilosa, cornus sanguinea