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Larrea tridentata - Ambrosia dumosa Shrubland | Western Ecology Working Group of...
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Name: Larrea tridentata - Ambrosia dumosa 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 and is reported from California and Nevada. More survey and classification work are needed to fully characterize this type. It typically occurs on sideslopes, but also occurs on mesas, alluvial fans, and drainage channels at 375 to 500 m (1250-1625 feet) elevation, but can be found as high as 650 m (2100 feet). It is typically found on low gradients (0-10°), across all aspects, but occasionally occurs on steeper slopes (10-20°). Soils are well- to rapidly-drained silty or sandy clays or loams, and the underlying geology is usually limestone or less frequently basalt. Vegetation is characterized by the codominance of the tall shrub <i>Larrea tridentata</i> and the dwarf-shrub <i>Ambrosia dumosa</i>. <i>Ferocactus cylindraceus</i> and <i>Opuntia acanthocarpa</i> occur most frequently in the sparse short-shrub layer. The dwarf-shrub layer also occasionally includes the cactus <i>Opuntia basilaris</i>. <i>Dasyochloa pulchella</i> and <i>Vulpia octoflora</i> are relatively common in a very sparse graminoid layer. <i>Cryptantha</i> spp., <i>Plantago</i> sp., <i>Eriogonum inflatum</i>, and <i>Erodium cicutarium</i> are regularly present in the forb understory. 
Accession Code: VB.CC.33545.CEGL002954
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.2.687878 NatureServe ExplorerNatureServe Explorer logo
  Translated: Creosotebush - Burrobush Shrubland
  Scientific: Larrea tridentata - Ambrosia dumosa Shrubland
  Code: CEGL002954