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A.872 | EcoArt 2002
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Name: A.872
Reference: EcoArt 2002
Description: Stands included in this alliance occur in valleys, bajadas and lower slopes of mountains in the Mojave Desert from 75 m below sea level to 1400 m above in elevation. Climate is characterized by hot, dry summers, with most rain occurring in the winter. Annual precipitation varies widely from year to year with mean annual precipitation of approximately 10 cm. Sites are very arid because of topography or salts. The alliance is commonly found along drainages that dissect west-facing bajadas and on western slopes of mountains. Topography is typically flat and rolling to moderately sloping. There are large areas of desert pavement with very sparse vegetation. Soils are deep, well-drained, alkaline, and coarse-textured. Vegetation included in this alliance has a very sparse canopy of ~Atriplex hymenelytra$ less than 1 m tall with scattered clumps of ~Tidestromia oblongifolia$ and ~Chamaesyce parishii$. More mesic sites in drainages may support additional perennials, including ~Larrea tridentata, Ambrosia dumosa, Baccharis sergiloides, Bebbia juncea, Hymenoclea salsola, Dalea mollissima$, and ~Eriogonum inflatum$. During wet years, annual forbs may be present. Adjacent vegetation is generally shrublands dominated by ~Larrea tridentata$ or ~Ambrosia dumosa$. 
Accession Code: VB.CC.2501.A872
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: III.A.5.N.b
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: ATRIPLEX HYMENELYTRA SHRUBLAND ALLIANCE
  Code: A.872
  Common: Desert-holly Shrubland Alliance
(convergence) and Synonyms:
(undetermined) Atriplex hymenelytra Shrubland Alliance