ambrosia artemisiifolia, elymus repens, grindelia squarrosa, medicago falcata, plantago lanceolata, polygonum aviculare, achillea collina, atriplex tatarica, carduus acanthoides, crepis tectorum, lactuca serriola, melilotus albus, atriplex prostrata, echium vulgare, potentilla argentea, tragopogon dubius