viola arvensis, poa annua, aphanes arvensis, capsella bursa-pastoris, arabidopsis thaliana, stellaria media, chenopodium album, myosurus minimus, scleranthus annuus, tripleurospermum inodorum, veronica hederifolia, artemisia vulgaris, draba verna, fallopia convolvulus, lamium amplexicaule, myosotis stricta, roemeria argemone, thlaspi arvense, veronica triphyllos