carduus acanthoides, bromus tectorum, elymus repens, lappula squarrosa, achillea setacea, artemisia absinthium, centaurea solstitialis, cirsium arvense, cirsium vulgare, convolvulus arvensis, erodium cicutarium, eryngium campestre, lactuca serriola, lolium perenne, lotus corniculatus, plantago lanceolata, sisymbrium loeselii, torilis arvensis, trifolium repens, tripleurospermum inodorum, xeranthemum annuum