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Larrea tridentata - Coleogyne ramosissima Shrubland | Western Ecology Working Group of...
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Name: Larrea tridentata - Coleogyne ramosissima Shrubland
Reference: Western Ecology Working Group of...
Description: This creosotebush shrubland association is currently described from Grand Canyon National Park in Arizona and is reported from California and Nevada. More survey and classification work are needed to fully characterize this type. At Grand Canyon, it typically occurs on sideslopes, but also occurs on plateaus and valley bottoms, at 1050 to 1200 m (3575-3925 feet) elevation, but can be found as low as 950 m (3175 feet). It is typically found on gentle (3-10 degrees) east-facing slopes, but occasionally occurs on steeper slopes (20°). Soils are well-drained silty or sandy clays or loams that usually lie on top of limestone or lava. Vegetation is characterized by strong components of <i>Larrea tridentata</i> in the tall-shrub stratum and <i>Coleogyne ramosissima</i> in the short-shrub layer. <i>Yucca baccata, Ephedra nevadensis</i>, and <i>Ferocactus cylindraceus</i> also regularly occur in the short-shrub stratum. An extremely sparse dwarf-shrub layer typically exists in which <i>Echinocereus engelmannii</i> and <i>Opuntia polyacantha</i> commonly occur. <i>Dasyochloa pulchella</i> and <i>Bromus rubens</i> (exotic) are common in a very sparse graminoid layer. <i>Plantago patagonica</i> and <i>Thymophylla pentachaeta</i> are occasionally present in a similarly weak forb layer. 
Accession Code: VB.CC.33531.CEGL002717
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.2.689125 NatureServe ExplorerNatureServe Explorer logo
  Translated: Creosotebush - Blackbrush Shrubland
  Scientific: Larrea tridentata - Coleogyne ramosissima Shrubland
  Code: CEGL002717