onopordum acanthium, urtica dioica, verbascum dentifolium, bromus diandrus, bromus sterilis, carduus carpetanus, carduus pycnocephalus, centaurea calcitrapa, cirsium arvense, cirsium vulgare, echium vulgare, lactuca serriola, papaver dubium, scolymus hispanicus, anthemis arvensis, carlina corymbosa, chondrilla juncea, cichorium intybus, conium maculatum, dactylis glomerata, holcus lanatus, hordeum murinum, lolium rigidum, marrubium vulgare, papaver rhoeas, sonchus oleraceus