fr, pas-de-calais, claytonia perfoliata, mahonia aquifolium, quercus robur, carex arenaria, erodium cicutarium, rosa spinosissima, chelidonium majus, prunus serotina, rumex acetosella, sedum acre, ligustrum vulgare, veronica arvensis, glechoma hederacea, euonymus europaeus, rubus caesius, rhamnus cathartica, sorbus aucuparia, lonicera periclymenum, agrostis capillaris, rosa rugosa, rumex angiocarpus, corynephorus canescens, hypochaeris radicata, luzula campestris, anchusa officinalis, prunus padus, saponaria officinalis, populus alba, jacobaea vulgaris, ribes rubrum, acer pseudoplatanus, hedera helix, betula pendula, sambucus nigra, galium verum, festuca filiformis, crataegus monogyna, geranium robertianum, calamagrostis epigejos, cynoglossum officinale, asparagus officinalis, cerastium semidecandrum, pinus sylvestris, pilosella officinarum, claytonia sibirica, calluna vulgaris, viola tricolor, ilex aquifolium, convallaria majalis, acer platanoides