fr, pas-de-calais, fagus sylvatica, pinus sylvestris, sorbus aucuparia, quercus robur, betula pendula, avenella flexuosa, prunus serotina, quercus petraea, vaccinium myrtillus, carpinus betulus, dryopteris carthusiana, lonicera periclymenum, convallaria majalis, deschampsia flexuosa, impatiens parviflora, pteridium aquilinum, moehringia trinervia, ilex aquifolium, acer pseudoplatanus, oxalis acetosella, quercus rubra, picea abies, lactuca muralis, frangula alnus, luzula pilosa, maianthemum bifolium, acer platanoides, hedera helix, melampyrum pratense, teucrium scorodonia, tilia cordata, dryopteris dilatata, mycelis muralis, dryopteris filix-mas, corylus avellana, lamium galeobdolon, castanea sativa, fragaria vesca, scrophularia nodosa, calamagrostis epigejos, carex pilulifera, rabelera holostea, populus tremula, urtica dioica, anemone nemorosa, veronica officinalis, polygonatum multiflorum, rubus idaeus, viola reichenbachiana, glechoma hederacea