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Acacia greggii Shrubland | Western Ecology Working Group of...
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Name: Acacia greggii Shrubland
Reference: Western Ecology Working Group of...
Description: This catclaw acacia 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 predominantly occurs on sideslopes at 700 to 1325 m (2250-4325 feet) elevation, but can be found as low as 400 m (1275 feet). It is primarily found on moderate to steep slopes (20-50°), but also occurs on more gentle gradients (3-8 degrees) as well. Soils are well- to rapidly-drained sandy loams or loamy sands, which lie above limestone or rarely shale, sandstone, or schist. Vegetation is characterized and dominated by <i>Acacia greggii</i> which typically occurs as a tall shrub but is also occasionally found as a short shrub. <i>Ephedra fasciculata</i> occurs quite frequently in the short-shrub layer, while <i>Ferocactus cylindraceus</i> and <i>Aloysia wrightii</i> also occur occasionally. <i>Agave utahensis, Gutierrezia</i> spp., <i>Opuntia basilaris, Brickellia atractyloides</i>, and <i>Janusia gracilis</i> occur sporadically in the sparse dwarf-shrub layer. <i>Bromus rubens</i> consistently occurs in a relatively well-developed graminoid layer. The perennial grasses <i>Aristida purpurea</i> and <i>Achnatherum speciosum</i> are also sporadically present. A fairly weak forb layer is common, in which <i>Porophyllum gracile, Acourtia wrightii, Cryptantha</i> spp., and <i>Sphaeralcea grossulariifolia</i> occur. 
Accession Code: VB.CC.31749.CEGL005053
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.2.840534 NatureServe ExplorerNatureServe Explorer logo
  Translated: Catclaw Acacia Shrubland
  Scientific: Acacia greggii Shrubland
  Code: CEGL005053