fr, pas-de-calais, hedera helix, fagus sylvatica, mercurialis perennis, crataegus monogyna, hyacinthoides non-scripta, fraxinus excelsior, euphorbia amygdaloides, quercus robur, corylus avellana, lonicera periclymenum, arum maculatum, ilex aquifolium, brachypodium sylvaticum, acer campestre, teucrium scorodonia, pteridium aquilinum, betula pubescens, cornus sanguinea, fragaria vesca, ligustrum vulgare, carex sylvatica, carpinus betulus, dryopteris filix-mas, rosa arvensis, acer pseudoplatanus, viola reichenbachiana, melica uniflora, anemone nemorosa, clematis vitalba, geranium robertianum, geum urbanum, circaea lutetiana, sanicula europaea, prunus avium, euonymus europaeus, betula pendula, galium aparine, neottia ovata, prunus spinosa, viola riviniana, quercus petraea, carex flacca, primula veris, lamium galeobdolon, viburnum lantana, vicia sepium, dioscorea communis, urtica dioica, polygonatum multiflorum, galium odoratum