brassica napus, papaver rhoeas, thlaspi arvense, veronica polita, veronica persica, capsella bursa-pastoris, cirsium arvense, convolvulus arvensis, descurainia sophia, euphorbia helioscopia, fumaria officinalis, galium aparine, lactuca serriola, lamium amplexicaule, lamium purpureum, lepidium draba, tripleurospermum inodorum, viola arvensis, artemisia vulgaris, geranium pusillum, silene noctiflora