fr, pas-de-calais, dioscorea communis, hedera helix, crataegus monogyna, prunus spinosa, heracleum sphondylium, corylus avellana, arum maculatum, fraxinus excelsior, quercus robur, acer campestre, dactylis glomerata, cornus sanguinea, lonicera periclymenum, urtica dioica, galium aparine, hyacinthoides non-scripta, asplenium scolopendrium, holcus lanatus, ilex aquifolium, ligustrum vulgare, mercurialis perennis, pteridium aquilinum, euonymus europaeus, clematis vitalba, geranium robertianum, euphorbia amygdaloides, ranunculus repens, arrhenatherum elatius, primula veris, centaurea nigra, geum urbanum, fagus sylvatica, rosa canina, teucrium scorodonia, brachypodium sylvaticum, sambucus nigra, plantago lanceolata, brachypodium pinnatum, ulex europaeus, cruciata laevipes, poa trivialis, orchis mascula, prunus avium, iris foetidissima, agrimonia eupatoria, rubus fruticosus, glechoma hederacea, veronica chamaedrys, origanum vulgare, potentilla reptans