secale cereale, buglossoides arvensis, centaurea cyanus, myosotis stricta, veronica hederifolia, arabidopsis thaliana, cirsium arvense, achillea millefolium, equisetum arvense, lamium purpureum, plantago major, roemeria argemone, rumex crispus, veronica arvensis, veronica persica, veronica triphyllos