scolymus hispanicus, amaranthus retroflexus, bromus arvensis, centaurea diffusa, cichorium intybus, cirsium vulgare, convolvulus arvensis, cynodon dactylon, ecballium elaterium, galium humifusum, lactuca saligna, lepidium draba, lolium perenne, marrubium vulgare, medicago lupulina, polygonum aviculare, solanum dulcamara, sonchus arvensis, xanthium spinosum