fr, pas-de-calais, quercus robur, hyacinthoides non-scripta, teucrium scorodonia, fagus sylvatica, hedera helix, lonicera periclymenum, pteridium aquilinum, ilex aquifolium, agrostis capillaris, castanea sativa, avenella flexuosa, deschampsia flexuosa, cytisus scoparius, acer pseudoplatanus, crataegus monogyna, betula pendula, fraxinus excelsior, calluna vulgaris, carpinus betulus, holcus mollis, quercus petraea, corylus avellana, rabelera holostea, rumex acetosella, anthoxanthum odoratum, holcus lanatus, galium aparine, prunus avium, urtica dioica, dactylis glomerata, sorbus aucuparia, arum maculatum, digitalis purpurea, viola riviniana, veronica chamaedrys, geum urbanum, acer campestre, sambucus nigra, rumex angiocarpus, geranium robertianum, prunus spinosa, betula pubescens, rubus fruticosus, pinus sylvestris, luzula campestris, ulex europaeus, glechoma hederacea, arrhenatherum elatius, dryopteris filix-mas, anemone nemorosa