artemisia annua, bromus tectorum, tragopogon dubius, atriplex prostrata, erigeron canadensis, myosotis arvensis, polygonum aviculare, amaranthus retroflexus, atriplex patula, centaurea adpressa, clinopodium acinos, crepis tectorum, cyclachaena xanthiifolia, delphinium consolida, grindelia squarrosa, hordeum murinum, sonchus arvensis, xeranthemum annuum