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Larrea tridentata - Ambrosia dumosa - Krameria (erecta, grayi) Shrubland | Western Ecology Working Group of...
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Name: Larrea tridentata - Ambrosia dumosa - Krameria (erecta, grayi) 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 occurs on a variety of landforms including sideslopes, drainage bottoms, and ridges at 375 to 625 m (1250-2075 feet) elevation, but can be found as high as 875 m (2850 feet). It is typically found on low gradients (1-5°), but occasionally occurs on steeper slopes (10-30°). The community seems to occur across all aspects besides west-facing, and seems to occur in various soil types. Vegetation is characterized by the codominance of three species: the tall shrub <i>Larrea tridentata</i>, the short shrub <i>Krameria grayi</i>, and the dwarf-shrub <i>Ambrosia dumosa</i>. The short-shrub layer also frequently supports the cactus <i>Opuntia acanthocarpa</i> and occasionally <i>Krameria erecta</i>. <i>Opuntia basilaris</i> is the only other dwarf-shrub that occurs regularly. <i>Bromus rubens</i> (exotic) and <i>Vulpia octoflora</i> are common in the sparse graminoid understory. <i>Plantago ovata, Antheropeas lanosum</i>, and <i>Erodium cicutarium</i> (exotic) are common members of the very sparse forb stratum. 
Accession Code: VB.CC.31741.CEGL005137
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.2.840590 NatureServe ExplorerNatureServe Explorer logo
  Translated: Creosotebush - Burrobush - (Littleleaf Ratany, White Ratany) Shrubland
  Scientific: Larrea tridentata - Ambrosia dumosa - Krameria (erecta, grayi) Shrubland
  Code: CEGL005137