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