fr, pas-de-calais, alopecurus myosuroides, chenopodium album, lysimachia arvensis, veronica persica, stellaria media, capsella bursa-pastoris, papaver rhoeas, polygonum aviculare, cirsium arvense, fallopia convolvulus, matricaria chamomilla, viola arvensis, poa annua, aphanes arvensis, senecio vulgaris, sinapis arvensis, apera spica-venti, vicia hirsuta, convolvulus arvensis, myosotis arvensis, vicia sativa, sonchus asper, galium aparine, veronica arvensis, centaurea cyanus, equisetum arvense, raphanus raphanistrum, persicaria maculosa, veronica hederifolia, gnaphalium uliginosum, euphorbia exigua, lamium purpureum, euphorbia helioscopia, elymus repens, tripleurospermum inodorum, arenaria serpyllifolia, fumaria officinalis, sonchus oleraceus, rumex crispus, ranunculus arvensis, lamium amplexicaule, arabidopsis thaliana, plantago major, scleranthus polycarpos, thlaspi arvense, solanum nigrum, papaver purpureomarginatum, juncus bufonius, persicaria lapathifolia, sonchus arvensis