fr, pas-de-calais, carex arenaria, calamagrostis epigejos, rhamnus cathartica, hippophae rhamnoides, rosa spinosissima, cynoglossum officinale, salix repens, jacobaea vulgaris, ligustrum vulgare, rubus caesius, erodium cicutarium, crataegus monogyna, mahonia aquifolium, sedum acre, asparagus officinalis, anchusa officinalis, galium verum, eupatorium cannabinum, epipactis palustris, holcus lanatus, carex trinervis, hypochaeris radicata, cerastium semidecandrum, hydrocotyle vulgaris, pyrola rotundifolia, rosa rubiginosa, veronica arvensis, prunus serotina, poa pratensis, luzula campestris, parnassia palustris, populus alba, phleum arenarium, myosotis ramosissima, rosa canina, potentilla reptans, berberis vulgaris, bryonia dioica, crepis capillaris, echium vulgare, festuca rubra, claytonia perfoliata, agrostis capillaris, solanum dulcamara, lonicera periclymenum, urtica dioica, rumex acetosella, lagurus ovatus, cardamine hirsuta, agrostis stolonifera