hordeum murinum, grindelia squarrosa, sisymbrium loeselii, lolium perenne, centaurea diffusa, chenopodium album, achillea setacea, bromus squarrosus, carduus crispus, elymus repens, onopordum acanthium, lepidium draba, amaranthus retroflexus, convolvulus arvensis, aegilops cylindrica, lactuca tatarica, poa angustifolia