fr, pas-de-calais, hedera helix, fraxinus excelsior, crataegus monogyna, hyacinthoides non-scripta, arum maculatum, ilex aquifolium, corylus avellana, acer pseudoplatanus, geum urbanum, lonicera periclymenum, quercus robur, urtica dioica, galium aparine, fagus sylvatica, sambucus nigra, circaea lutetiana, glechoma hederacea, geranium robertianum, rubus fruticosus, acer campestre, dryopteris filix-mas, mercurialis perennis, ficaria verna, alnus glutinosa, prunus avium, prunus spinosa, rumex sanguineus, allium ursinum, dryopteris dilatata, sorbus aucuparia, castanea sativa, heracleum sphondylium, poa trivialis, carex sylvatica, anemone nemorosa, stachys sylvatica, carpinus betulus, lamium galeobdolon, pteridium aquilinum, betula pubescens, euonymus europaeus, betula pendula, primula vulgaris, silene dioica, viola riviniana, ribes rubrum, carex pendula, rabelera holostea, ranunculus repens, veronica montana