fr, pas-de-calais, veronica persica, chenopodium album, convolvulus arvensis, polygonum aviculare, fallopia convolvulus, capsella bursa-pastoris, papaver rhoeas, mercurialis annua, lysimachia arvensis, stellaria media, euphorbia helioscopia, cirsium arvense, viola arvensis, lamium purpureum, sinapis arvensis, galium aparine, senecio vulgaris, plantago major, elymus repens, centaurea cyanus, sonchus asper, myosotis arvensis, poa annua, triticum aestivum, aethusa cynapium, veronica arvensis, lamium amplexicaule, tripleurospermum inodorum, matricaria chamomilla, sonchus oleraceus, raphanus raphanistrum, lapsana communis, avena fatua, sonchus arvensis, veronica hederifolia, sherardia arvensis, vicia sativa, persicaria maculosa, equisetum arvense, artemisia vulgaris, thlaspi arvense, hordeum vulgare, vicia hirsuta, fumaria officinalis, amaranthus retroflexus, geranium pusillum, geranium dissectum, euphorbia exigua, achillea millefolium, agrostemma githago