fr, pas-de-calais, agrostis capillaris, erigeron canadensis, rumex acetosella, rumex angiocarpus, quercus robur, hypochaeris radicata, holcus lanatus, senecio inaequidens, claytonia perfoliata, carex arenaria, prunus serotina, urtica dioica, senecio vulgaris, festuca rubra, betula pendula, agrostis stolonifera, jacobaea vulgaris, cirsium arvense, aira praecox, galium aparine, arrhenatherum elatius, stellaria media, sambucus nigra, poa annua, sedum acre, trifolium arvense, elymus repens, plantago lanceolata, cytisus scoparius, bromus hordeaceus, erodium cicutarium, acer pseudoplatanus, achillea millefolium, calamagrostis epigejos, arenaria serpyllifolia, lonicera periclymenum, cerastium semidecandrum, dactylis glomerata, corynephorus canescens, crepis capillaris, jasione montana, teucrium scorodonia, veronica arvensis, plantago coronopus, vicia sativa, senecio sylvaticus, pinus sylvestris, festuca filiformis, phragmites australis, artemisia vulgaris