zea mays, avena fatua, carduus acanthoides, chenopodium album, convolvulus arvensis, elymus repens, euphorbia helioscopia, fallopia convolvulus, persicaria maculosa, sinapis arvensis, thlaspi arvense, tripleurospermum inodorum, cirsium arvense, lolium multiflorum, papaver rhoeas, rumex crispus