fr, pas-de-calais, fraxinus excelsior, hyacinthoides non-scripta, quercus robur, hedera helix, lonicera periclymenum, corylus avellana, fagus sylvatica, carpinus betulus, circaea lutetiana, arum maculatum, betula pubescens, crataegus monogyna, carex sylvatica, acer pseudoplatanus, lamium galeobdolon, polygonatum multiflorum, dryopteris filix-mas, mercurialis perennis, ilex aquifolium, anemone nemorosa, athyrium filix-femina, geum urbanum, ficaria verna, ajuga reptans, euphorbia amygdaloides, acer campestre, dryopteris carthusiana, alnus glutinosa, glechoma hederacea, pteridium aquilinum, prunus avium, castanea sativa, milium effusum, betula pendula, carex remota, carex pendula, urtica dioica, oxalis acetosella, deschampsia cespitosa, holcus mollis, viola reichenbachiana, dryopteris dilatata, euonymus europaeus, primula elatior, geranium robertianum, galium aparine, veronica montana, viola riviniana, brachypodium sylvaticum, quercus petraea