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Ambrosia dumosa Dwarf-shrubland | Western Ecology Working Group of...
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Name: Ambrosia dumosa Dwarf-shrubland
Reference: Western Ecology Working Group of...
Description: This white bursage 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 primarily occurs on sideslopes and plateaus at 475 to 575 m (1600 to 1875 feet) elevation; it rarely occurs as high as 625 m (2025 feet). This association is typically found on moderately sloping gradients (10-15°), but occasionally occurs on much flatter slopes (0-4°). Soils are rapidly-drained sands or sandy loams that lie on top of limestone or sandstone. <i>Ambrosia dumosa</i> dominates the dwarf-shrub layer and characterizes this vegetation type. Tall shrubs such as <i>Larrea tridentata</i> occasionally occur in a poorly-defined stratum. <i>Opuntia acanthocarpa, Ephedra torreyana</i>, and <i>Encelia farinosa</i> regularly occur in a sparse short-shrub layer. The cactus <i>Opuntia basilaris</i> is commonly found in the dwarf-shrub layer. <i>Bromus rubens</i> and <i>Vulpia octoflora</i> occur occasionally in the sparse graminoid layer. <i>Eriogonum inflatum, Gilia</i> sp., <i>Cryptantha</i> spp., <i>Pectocarya</i> sp., and <i>Descurainia pinnata</i> are common forbs. 
Accession Code: VB.CC.31747.CEGL005074
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.2.840541 NatureServe ExplorerNatureServe Explorer logo
  Scientific: Ambrosia dumosa Dwarf-shrubland
  Translated: Burrobush Dwarf-shrubland
  Code: CEGL005074