secale cereale, scleranthus annuus, vicia grandiflora, aphanes arvensis, arabidopsis thaliana, capsella bursa-pastoris, centaurea cyanus, equisetum arvense, veronica hederifolia, viola arvensis, cirsium arvense, draba verna, lamium purpureum, myosotis stricta, roemeria argemone, rumex acetosella