fr, pas-de-calais, fraxinus excelsior, hedera helix, corylus avellana, arum maculatum, fagus sylvatica, quercus robur, carpinus betulus, acer pseudoplatanus, crataegus monogyna, acer campestre, prunus avium, mercurialis perennis, hyacinthoides non-scripta, lonicera periclymenum, polygonatum multiflorum, carex sylvatica, lamium galeobdolon, anemone nemorosa, cornus sanguinea, geum urbanum, euonymus europaeus, dryopteris filix-mas, euphorbia amygdaloides, ilex aquifolium, quercus petraea, rosa arvensis, viola reichenbachiana, ligustrum vulgare, circaea lutetiana, sambucus nigra, crataegus laevigata, ficaria verna, brachypodium sylvaticum, milium effusum, ulmus minor, galium aparine, galium odoratum, melica uniflora, viburnum opulus, primula elatior, paris quadrifolia, adoxa moschatellina, neottia ovata, betula pendula, glechoma hederacea, clematis vitalba, geranium robertianum, prunus spinosa, urtica dioica, castanea sativa