fr, pas-de-calais, carex arenaria, galium verum, plantago lanceolata, luzula campestris, hypochaeris radicata, jacobaea vulgaris, festuca rubra, agrostis capillaris, poa pratensis, lotus corniculatus, anthoxanthum odoratum, veronica arvensis, rumex angiocarpus, bromus hordeaceus, rumex acetosella, achillea millefolium, erodium cicutarium, aira praecox, koeleria macrantha, sedum acre, ranunculus bulbosus, crepis capillaris, geranium molle, trifolium repens, holcus lanatus, cerastium semidecandrum, pilosella officinarum, arenaria serpyllifolia, vicia sativa, ononis spinosa, trifolium dubium, cerastium arvense, myosotis ramosissima, rumex acetosa, vicia lathyroides, eryngium campestre, cerastium fontanum, festuca filiformis, trifolium campestre, dactylis glomerata, aira caryophyllea, avenula pubescens, cerastium holosteoides, lolium perenne, phleum arenarium, polygala vulgaris, bellis perennis, arrhenatherum elatius, thymus pulegioides, trifolium arvense