stellaria media, centaurea cyanus, elymus repens, capsella bursa-pastoris, myosotis arvensis, veronica hederifolia, viola arvensis, apera spica-venti, aphanes arvensis, arabidopsis thaliana, chenopodium album, draba verna, poa annua, tripleurospermum inodorum, galium aparine, vicia hirsuta