fr, pas-de-calais, lonicera periclymenum, teucrium scorodonia, pteridium aquilinum, betula pendula, calamagrostis epigejos, betula pubescens, quercus robur, holcus lanatus, agrostis capillaris, crataegus monogyna, rubus fruticosus, hyacinthoides non-scripta, molinia caerulea, hedera helix, calluna vulgaris, holcus mollis, erica cinerea, urtica dioica, ulex europaeus, pinus sylvestris, ilex aquifolium, cirsium palustre, prunus spinosa, potentilla erecta, eupatorium cannabinum, anthoxanthum odoratum, fagus sylvatica, frangula alnus, cytisus scoparius, fraxinus excelsior, hydrocotyle vulgaris, geranium robertianum, rumex acetosella, avenella flexuosa, viola riviniana, juncus effusus, sorbus aucuparia, carex arenaria, juncus conglomeratus, veronica officinalis, dryopteris filix-mas, alnus glutinosa, galium palustre, galium aparine, cirsium arvense, moehringia trinervia, ligustrum vulgare, fragaria vesca, agrostis canina, ranunculus repens