Vegetation is primarily sagebrush steppe and alkaline-tolerant shrubs dominated by sagebrush (Artemisia spp.) and shadscale
(Atriplex confertifolia) with intermixed yellow rabbitbrush (Chrothamnus viscidiflorus), horsebrush (Tetradymia spp.), and slender buckwheat (Eriogonum microthecum).
Native vegetation on both the mainland and Anaho Island is Great Basin desertscrub (Turner, 1994) and dominant species include shadscale
(Atriplex confertifolia), four-wing saltbush (A.
Salt desert shrub ecoregions, characterized by less precipitation and alkaline soils, comprise approximately 19% of the OTR and are dominated by Gardner's saltbush Atriplex gardneri, shadscale
Atriplex confertifolia, black greasewood Sarcobatus vermiculatus, mock goldenweed and cushion-like phlox, with sporadic inclusions of Wyoming big sagebrush and basin big sagebrush A.
For example, the degradation of sagebrush, Mojave, and shadscale
(a perennial shrub of the Great Basin) habitats by aggressive invasive plants such as cheatgrass and red brome following wildfire threatens many of Nevada's native species.
Density changes and habitat affinities of rodents of shadscale
and sagebrush associations.
These shrub species were Shockley's goldenhead (Acamptopappus shockleyi), white bursage (Ambrosia dumosa), shadscale
(Atriplex confertifolia), Nevada ephedra (Ephedra nevadensis), winterfat (Krascheninnikovia lanata), range ratany (Krameria erecta), and creosote bush (Larrea tridentata).
We did not investigate areas in which ground squirrels are seldom found, such as those characterized by shadscale
(Atriplex con fertifolia) shrub cover, those used repeatedly for army bivouac activities with very compact soil, agricultural areas, and paved roads.
In a synergistic feedback mechanism, the exotic annual understory increased fire spread and loss of big sagebrush (Artemisia tridentata), winterfat (Kraschenninikovia lanata), and shadscale
(Atriplex confertifolia) communities, and further accelerated the spread of annuals (Whisenant 1990, Knick and Rotenberry 1997).
The major native vegetative associations are characteristic of shrubsteppe communities in an upper Sonoran life zone: big sagebrush, shadscale
(Atriplex confertifolia), and winterfat (Ceratoides lanata).
In this mix of moist and dry environments, look for desert staples such as creosote bush, burro brush, and shadscale
close to pines, junipers, and canyon oak.
Vegetation is dominated by woody shrubs including creosote bush (Larrea tridentata), black brush (Coleogyne ramosissima), bursage (Ambrosia dumosa), and shadscale
nova (black sagebrush), Atriplex confertifolia (shadscale
), Tetradymia spinosa (shortspine horsebrush), and Ephedra torreyana.