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Big sagebrush is a coarse, many-branched, pale-grey shrub with yellow flowers and silvery-grey foliage, which is generally 0.5–3 metres (1 + 1 ⁄ 2 –10 feet) tall. [3] A deep taproot 1–4 m (3 + 1 ⁄ 2 –13 ft) in length, coupled with laterally spreading roots near the surface, allows sagebrush to gather water from both surface precipitation and the water table several meters beneath.
Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis) occurs at the lowest and driest elevations, although much of the Wasatch Range is above the elevation where this subspecies occurs. [11] All sagebrush species, combined, provide critical habitat to greater sage grouse , a species under consideration for listing by the United States ...
University of Wyoming historian Phil Roberts described the notion of building a transcontinental railroad as "today's equivalent of the mission to Mars: Big, expensive and impossible". [13] The preliminary survey for the railroad produced the first map of the Great Basin and Southern Wyoming, according to author Stephen E. Ambrose. [14]
The dominant vegetation of this ecoregion is sagebrush (Artemisia tridentata), often associated with various Agropyron species or fescue grass.At its upper altitudinal limit, the shrub steppe grades into the bordering mountain ecoregions, namely the South Central Rockies forests, the Colorado Rockies forests and the Wasatch and Uinta montane forests.
Vegetation on the steppe includes Wyoming big sagebrush, low sagebrush, mountain big sagebrush, Lahontan sagebrush, bluebunch wheatgrass, Sandberg's bluegrass, Thurber's needlegrass, bottlebrush squirreltail, and Idaho fescue. Silver sagebrush, creeping wildrye, and mat muhly are found in depressions. Shallow and rocky soils support scattered ...
The most common sagebrush species in the sagebrush steppe in most areas is big sagebrush (Artemisia tridentata). Others include three-tip sagebrush (Artemisia tripartita) and low sagebrush (Artemisia arbuscula). Sagebrush is found alongside many species of grasses. [1] Sagebrush steppe is a diverse habitat, with more than 350 recorded ...
The region receives an average of 10 to 12 inches (250 to 300 mm) of rain per year. Sagebrush and bunchgrass associations dominate plant assemblages outside of heavily farmed or grazed areas, with needle-and-thread, bluebunch wheatgrass, Sandberg bluegrass, Wyoming big sagebrush, and basin big sagebrush. Alien cheatgrass covers broad areas.
In addition, this ecoregion contains foothill grasslands and shrub steppes dominated by big sagebrush (Artemisia tridentata), similar to the surrounding Montana valley and foothill grasslands, Wyoming Basin shrub steppe, and Snake–Columbia shrub steppe. There also are mountain meadows, riparian woodlands, and alpine tundra. In some areas ...