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Larrea tridentata Shrubland | Western Ecology Working Group of...
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Name: Larrea tridentata Shrubland
Reference: Western Ecology Working Group of...
Description: This creosotebush shrubland association is currently described from Grand Canyon National Park and Grand Canyon-Parashant National Monument in Arizona. More survey and classification work are needed to fully characterize this type. It often occurs on sideslopes but can occupy a variety of other landforms, including drainage bottoms, alluvial fans, and valley bottoms. It usually occurs at 375 to 750 m (1250-2550 feet) elevation, but can be found as high as 1350 m (4450 feet), and occurs across all aspects. It is typically found on low gradients (1-10°), but can occasionally occur on steeper slopes (10-30°). Soils are well- to rapidly-drained silty or sandy loams, and the bedrock is often limestone. Vegetation is characterized by a homogenous tall-shrub layer of <i>Larrea tridentata</i> and lacks well-represented or codominant shrub components in any of the other strata. <i>Opuntia acanthocarpa, Ferocactus cylindraceus</i>, and <i>Krameria grayi</i> or <i>Krameria erecta</i> occasionally occur in the sparse short-shrub layer. <i>Ambrosia dumosa</i> and <i>Opuntia basilaris</i> occasionally occur in a very weak dwarf-shrub layer. <i>Vulpia octoflora</i> is very common in the graminoid understory, and <i>Bromus rubens</i> also occasionally occurs. <i>Antheropeas lanosum, Plantago ovata, Cryptantha</i> sp., <i>Gilia</i> sp., and <i>Amsinckia menziesii</i> are common components of a fairly well-developed herb layer. 
Accession Code: VB.CC.31670.CEGL005145
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: association
  • This Community's Children: [none]
Names:   UID: ELEMENT_GLOBAL.2.840599 NatureServe ExplorerNatureServe Explorer logo
  Scientific: Larrea tridentata Shrubland
  Code: CEGL005145
  Translated: Creosotebush Shrubland