centaurea cyanus, apera spica-venti, elymus repens, equisetum arvense, euphorbia helioscopia, galium aparine, papaver rhoeas, roemeria argemone, secale cereale, sinapis arvensis, veronica hederifolia, argentina anserina, atriplex patula, buglossoides arvensis, delphinium consolida, fallopia convolvulus, myosotis arvensis, odontites vernus, ranunculus arvensis, sonchus arvensis, stachys palustris, trifolium pratense, tussilago farfara, veronica persica, vicia cracca, viola arvensis, chenopodium album, cirsium arvense, lysimachia arvensis, plantago major, scandix pecten-veneris