sclerochloa dura, poa annua, polygonum aviculare, bromus tectorum, convolvulus arvensis, aegilops cylindrica, capsella bursa-pastoris, cynodon dactylon, lolium perenne, bromus hordeaceus, bromus sterilis, medicago sativa, cichorium intybus, crepis pulchra, erigeron canadensis, hordeum murinum, lactuca serriola, matricaria chamomilla, poa compressa, stellaria media, veronica arvensis, veronica polita