veronica hederifolia, centaurea cyanus, chenopodium album, elymus repens, apera spica-venti, arabidopsis thaliana, capsella bursa-pastoris, fallopia convolvulus, myosotis arvensis, scleranthus annuus, draba verna, lamium amplexicaule, papaver dubium, veronica persica, vicia sativa, teesdalia nudicaulis