grindelia squarrosa, lepidium draba, ambrosia artemisiifolia, bromus squarrosus, bromus tectorum, convolvulus arvensis, cyclachaena xanthiifolia, delphinium consolida, erigeron acris, lappula squarrosa, matricaria chamomilla, polygonum aviculare, reseda lutea, sisymbrium loeselii, falcaria vulgaris