fr, pas-de-calais, carex arenaria, jacobaea vulgaris, agrostis capillaris, holcus lanatus, festuca rubra, galium verum, hypochaeris radicata, urtica dioica, rubus caesius, poa pratensis, rosa spinosissima, rumex acetosella, luzula campestris, rumex angiocarpus, plantago lanceolata, erodium cicutarium, crepis capillaris, anthoxanthum odoratum, aira praecox, hippophae rhamnoides, geranium molle, sedum acre, arrhenatherum elatius, veronica arvensis, achillea millefolium, galium aparine, cirsium arvense, cerastium semidecandrum, lotus corniculatus, calamagrostis epigejos, crataegus monogyna, bromus hordeaceus, cynoglossum officinale, trifolium repens, solanum dulcamara, cerastium arvense, rumex acetosa, phleum arenarium, ranunculus repens, cerastium fontanum, dactylis glomerata, vicia sativa, elymus repens, koeleria macrantha, poa trivialis, glechoma hederacea, agrostis stolonifera, festuca filiformis, ligustrum vulgare, claytonia perfoliata