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Atriplex hymenelytra - Larrea tridentata Shrubland | NatureServe Biotics 2019
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Name: Atriplex hymenelytra - Larrea tridentata Shrubland Reference: NatureServe Biotics 2019 Description: This shrubland association is commonly found in the Mojave Desert in Arizona, California, and Nevada, and extends in the Colorado/Sonoran Desert and southeastern Great Basin in California. It varies in shrub cover from sparse to open or intermittent (2-25% cover) and is characterized by the presence of <i>Atriplex hymenelytra</i> and <i>Larrea tridentata</i> typically dominant or codominant. Other associated shrubs at lower cover include <i>Ambrosia dumosa, Atriplex confertifolia, Encelia farinosa, Echinocactus polycephalus, Lycium andersonii, Opuntia basilaris, Suaeda moquinii</i>, and <i>Tidestromia</i> spp. If present, herbaceous cover is variable depending on precipitation, but typically sparse (&lt;10%) with a few perennial associates present such as <i>Castilleja angustifolia var. dubia, Chamaesyce parishii, Dalea mollissima, Eriogonum inflatum, Psathyrotes ramosissima, Sphaeralcea ambigua, Stephanomeria pauciflora, Thamnosma montana</i>, and <i>Xylorhiza tortifolia</i>. Annuals may be seasonally abundant and diverse depending on season and amount of precipitation. Stands are typically found at mid to upper elevations on gravelly alluvial fans on all slope positions and less commonly on rocky colluvial slopes but can also occur at low elevations. Elevations range from 50 to 1300 m. Slopes are gentle to somewhat steep (to 25°) with typically warm easterly to southwesterly aspects. Alluvial fans are often braided with drainages and interfluves that are periodically disturbed by flows. Substrates are typically poorly developed, very gravelly, coarse-textured, alkaline soils. Soil texture is often sand or sandy loam, but less commonly includes silty clays.  Accession Code: urn:lsid:vegbank.org:commConcept:30173-{6E5E4A84-958D-4FC0-BC5E-D7EBA84BD088} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 23-Apr-2018 to: ongoing
	status: accepted Community's Parent: Atriplex hymenelytra Scrub Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.683987 NatureServe Explorer   Code: CEGL001264   Translated: Desert-holly - Creosotebush Shrubland   Scientific: Atriplex hymenelytra - Larrea tridentata Shrubland (convergence) and Synonyms: (similar) CEGL001264 (similar) Larrea tridentata - Atriplex hymenelytra Shrubland (similar) Larrea tridentata - Atriplex hymenelytra Shrubland