arabidopsis thaliana, viola arvensis, aphanes arvensis, buglossoides arvensis, centaurea cyanus, draba verna, myosotis stricta, myosurus minimus, poa annua, roemeria argemone, scleranthus annuus, stellaria media, tripleurospermum inodorum, veronica arvensis, veronica hederifolia, veronica triphyllos