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Yucca brevifolia / Coleogyne ramosissima Wooded Shrubland | Western Ecology Working Group of...
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Name: Yucca brevifolia / Coleogyne ramosissima Wooded Shrubland
Reference: Western Ecology Working Group of...
Description: This Joshua tree shrubland association is currently described from Grand Canyon National Park in Arizona. More survey and classification work are needed to fully characterize this type. It is restricted to low-level sideslopes and valley bottoms at 1475 to 1500 m (4875-4900 feet) elevation, but can occur as high as 1600 m (5275 feet). It is typically found on very gentle slopes (2-4°), but occasionally occurs on more moderate gradients (6-8°). It seems to occur across all aspects other than south-facing. Soils are rapidly-drained sandy loams that usually lie on top of limestone or basalt. Vegetation is characterized by the codominance of the tall shrub <i>Yucca brevifolia</i> and the short shrub <i>Coleogyne ramosissima</i>. <i>Yucca baccata, Ephedra viridis, Atriplex canescens</i>, and <i>Purshia stansburiana</i> also commonly occur in the short-shrub layer. <i>Opuntia basilaris</i> regularly occurs in the dwarf-shrub stratum, while <i>Agave utahensis</i> and <i>Gutierrezia microcephala</i> can be found sporadically. Native bunchgrasses, including <i>Bouteloua eriopoda, Muhlenbergia porteri, Bouteloua gracilis, Dasyochloa pulchella</i>, and <i>Tridens muticus</i>, occur in most stands at relatively low individual covers. The exotic <i>Bromus tectorum</i> is a frequent graminoid, and <i>Cymopterus purpurascens</i> and <i>Erodium cicutarium</i> occur most frequently in a poorly-developed forb layer. 
Accession Code: VB.CC.31722.CEGL005294
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.2.840645 NatureServe ExplorerNatureServe Explorer logo
  Translated: Joshua Tree / Blackbrush Wooded Shrubland
  Code: CEGL005294
  Scientific: Yucca brevifolia / Coleogyne ramosissima Wooded Shrubland