onopordum acanthium, hordeum murinum, lactuca serriola, lappula squarrosa, ballota nigra, bromus tectorum, capsella rubella, descurainia sophia, arctium lappa, arenaria serpyllifolia, artemisia absinthium, atriplex prostrata, bromus squarrosus, hyoscyamus niger, lepidium campestre, lepidium ruderale, nepeta nepetella, papaver rhoeas, poa angustifolia, urtica urens