fr, pas-de-calais, hyacinthoides non-scripta, acer pseudoplatanus, hedera helix, fraxinus excelsior, quercus robur, fagus sylvatica, corylus avellana, castanea sativa, ilex aquifolium, lonicera periclymenum, crataegus monogyna, arum maculatum, circaea lutetiana, sambucus nigra, betula pubescens, geum urbanum, betula pendula, glechoma hederacea, urtica dioica, carpinus betulus, polygonatum multiflorum, mercurialis perennis, acer campestre, euonymus europaeus, galium aparine, prunus avium, pteridium aquilinum, teucrium scorodonia, sorbus aucuparia, dryopteris filix-mas, rhododendron ponticum, geranium robertianum, asplenium scolopendrium, taxus baccata, silene dioica, lamium galeobdolon, allium ursinum, ligustrum vulgare, anemone nemorosa, cornus sanguinea, alnus glutinosa, ruscus aculeatus, dryopteris dilatata, ulmus minor, ribes rubrum, viburnum opulus, ficaria verna, viola riviniana, euphorbia amygdaloides, primula vulgaris