matricaria chamomilla, echium vulgare, medicago falcata, ambrosia artemisiifolia, artemisia absinthium, bromus tectorum, cichorium intybus, convolvulus arvensis, elymus repens, euphorbia esula, jacobaea erucifolia, lactuca serriola, lathyrus tuberosus, onobrychis arenaria, pilosella echioides, poa angustifolia, vicia cracca, melilotus officinalis, viola kitaibeliana