hordeum vulgare, chenopodium album, crepis biennis, euphorbia helioscopia, fallopia convolvulus, medicago sativa, thlaspi arvense, artemisia vulgaris, avena sativa, capsella bursa-pastoris, cirsium arvense, convolvulus arvensis, galium aparine, lamium album, lamium purpureum, lysimachia arvensis, papaver rhoeas, polygonum aviculare, sonchus arvensis, tripleurospermum inodorum, viola arvensis