fr, pas-de-calais, plantago lanceolata, lotus corniculatus, agrostis stolonifera, festuca rubra, sedum acre, trifolium repens, armeria maritima, galium verum, linum catharticum, scorzoneroides autumnalis, carex flacca, pilosella officinarum, danthonia decumbens, ranunculus bulbosus, festuca ovina, prunella vulgaris, plantago coronopus, hypochaeris radicata, arenaria serpyllifolia, briza media, carex arenaria, bellis perennis, poa pratensis, carex caryophyllea, medicago lupulina, koeleria macrantha, agrostis capillaris, anthyllis vulneraria, bromus hordeaceus, luzula campestris, achillea millefolium, cerastium holosteoides, trifolium pratense, juncus articulatus, thymus praecox, jacobaea vulgaris, cynosurus cristatus, sagina nodosa, leontodon hispidus, anthoxanthum odoratum, polygala vulgaris, plantago maritima, hydrocotyle vulgaris, lolium perenne, ononis spinosa, argentina anserina, cerastium semidecandrum, holcus lanatus, dactylis glomerata, thymus serpyllum