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Larrea tridentata - Ambrosia dumosa / Cryptogamic Crust Desert Shrubland | NatureServe Biotics 2019
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Name: Larrea tridentata - Ambrosia dumosa / Cryptogamic Crust Desert Shrubland
Reference: NatureServe Biotics 2019
Description: This scrub association occurs at low to mid elevations in the Colorado and Mojave deserts in California. Vegetation is characterized by an open to patchy shrub canopy (5-15% cover) codominated by <i>Ambrosia dumosa</i> and <i>Larrea tridentata</i> with <i>Cylindropuntia ramosissima</i> often present. There is a characteristic nonvascular biological soil crust that is typically moderate to dense (45-88% cover). If present, the herbaceous layer is sparse and composed of <i>Camissonia boothii</i> and exotic grasses <i>Schismus</i> spp. It is found on bajadas and in valleys, as well as less commonly on ridgetops at 50-1050 m elevation. Sites occur on flat to gentle slopes, frequently with various aspects. Soils are also variable but often sandy with moderate to high gravel and are primarily derived from alluvium. 
Accession Code: urn:lsid:vegbank.org:commConcept:34436-{CA7B392B-069E-4AFD-ADB0-6C6551DDB1E9}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 28-Nov-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.971724 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL005763
  Translated: Creosotebush - Burrobush / Cryptogamic Crust Desert Shrubland
  Scientific: Larrea tridentata - Ambrosia dumosa / Cryptogamic Crust Desert Shrubland