hordeum vulgare, tripleurospermum inodorum, matricaria chamomilla, cirsium arvense, echinochloa crus-galli, elymus repens, matricaria discoidea, vicia tetrasperma, capsella bursa-pastoris, chenopodium album, lolium multiflorum, papaver rhoeas, polygonum aviculare, potentilla reptans, thlaspi arvense