viola arvensis, capsella bursa-pastoris, stellaria media, apera spica-venti, aphanes arvensis, arabidopsis thaliana, buglossoides arvensis, draba verna, lamium amplexicaule, poa annua, thlaspi arvense, tripleurospermum inodorum, veronica arvensis, veronica hederifolia, lamium purpureum, matricaria discoidea, myosotis stricta