secale cereale, draba verna, anthoxanthum aristatum, apera spica-venti, centaurea cyanus, veronica dillenii, arabidopsis thaliana, capsella bursa-pastoris, elymus repens, fallopia convolvulus, scleranthus annuus, veronica arvensis, veronica hederifolia, veronica triphyllos, vicia villosa, viola arvensis