agrostemma githago, centaurea cyanus, galium aparine, vicia sativa, chenopodium album, convolvulus arvensis, galium spurium, lactuca serriola, papaver rhoeas, viola arvensis, achillea millefolium, artemisia absinthium, descurainia sophia, euphorbia helioscopia, fallopia convolvulus, lamium amplexicaule, medicago lupulina, odontites vernus, polygonum aviculare, veronica hederifolia, brassica rapa