ambrosia artemisiifolia, bassia scoparia, bromus tectorum, carduus acanthoides, chenopodium album, crepis foetida, crepis setosa, cyclachaena xanthiifolia, erigeron canadensis, hordeum murinum, lactuca saligna, lactuca serriola, lappula squarrosa, lolium perenne, matricaria chamomilla, papaver rhoeas, viola arvensis, xanthium orientale