hordeum murinum, bromus tectorum, achillea setacea, artemisia absinthium, atriplex tatarica, bromus squarrosus, carduus acanthoides, chenopodium album, convolvulus arvensis, cynodon dactylon, elymus repens, lactuca serriola, lappula squarrosa, lolium perenne, medicago lupulina, onopordum acanthium, polygonum aviculare, sisymbrium loeselii, xanthium strumarium