cirsium vulgare, cynodon dactylon, arctium minus, bromus sterilis, carduus acanthoides, centaurea calcitrapa, erigeron canadensis, lactuca serriola, amaranthus retroflexus, atriplex tatarica, carduus nutans, chaiturus marrubiastrum, geranium pusillum, hordeum murinum, lappula squarrosa, xanthium spinosum