secale cereale, scleranthus annuus, achillea millefolium, arabidopsis thaliana, arnoseris minima, buglossoides arvensis, centaurea cyanus, cirsium arvense, equisetum arvense, equisetum sylvaticum, fallopia convolvulus, roemeria argemone, rumex acetosella, veronica hederifolia, veronica triphyllos