bromus tectorum, sclerochloa dura, lolium perenne, berteroa incana, bromus hordeaceus, bromus japonicus, capsella bursa-pastoris, cichorium intybus, cynodon dactylon, descurainia sophia, erodium cicutarium, matricaria chamomilla, medicago lupulina, plantago lanceolata, polygonum aviculare, potentilla argentea, trifolium repens