fr, pas-de-calais, quercus robur, fraxinus excelsior, corylus avellana, lonicera periclymenum, hedera helix, fagus sylvatica, acer pseudoplatanus, castanea sativa, carpinus betulus, betula pendula, arum maculatum, prunus avium, polygonatum multiflorum, crataegus monogyna, sambucus nigra, hyacinthoides non-scripta, teucrium scorodonia, urtica dioica, sorbus aucuparia, heracleum sphondylium, glechoma hederacea, lamium galeobdolon, circaea lutetiana, geum urbanum, carex sylvatica, salix caprea, dryopteris filix-mas, anemone nemorosa, cornus sanguinea, galium aparine, betula pubescens, holcus lanatus, pteridium aquilinum, athyrium filix-femina, ranunculus repens, poa trivialis, quercus petraea, primula elatior, ilex aquifolium, dryopteris carthusiana, viburnum opulus, ajuga reptans, scrophularia nodosa, populus tremula, stachys sylvatica, frangula alnus, alnus glutinosa, angelica sylvestris, acer campestre, geranium robertianum