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Larrea tridentata - Encelia farinosa - Fouquieria splendens Shrubland | NatureServe Biotics 2019
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Name: Larrea tridentata - Encelia farinosa - Fouquieria splendens Shrubland Reference: NatureServe Biotics 2019 Description: This creosotebush 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 primarily occurs on xeric desert sideslopes at 475 to 575 m (1550-1900 feet) elevation, but can be found as high as 645 m (2100 feet). It is typically found on low gradients (2-10°) and on south- or east-facing aspects, but is also common on steeper slopes (20-28°). Soils are well- to rapidly-drained sandy loams or clays, and the bedrock is typically limestone. Vegetation is characterized by the codominance of three shrub species: the tall shrubs <i>Larrea tridentata</i> (3-5%) and <i>Fouquieria splendens</i> (3-5%), and the short shrub <i>Encelia farinosa</i> (5-10%). In the short-shrub layer, <i>Encelia farinosa</i> is invariably accompanied by <i>Ephedra aspera</i>. <i>Krameria erecta, Ferocactus cylindraceus</i>, and <i>Cylindropuntia acanthocarpa</i> also occur fairly frequently. A very weak dwarf-shrub layer exists in which <i>Opuntia basilaris</i> occurs occasionally. <i>Vulpia octoflora</i> and <i>Dasyochloa pulchella</i> are occasionally present in a meager graminoid layer. <i>Plantago ovata, Phacelia</i> sp., and <i>Allionia incarnata</i> sporadically occur in the fairly sparse forb layer.  Accession Code: urn:lsid:vegbank.org:commConcept:33903-{D50782C0-E5AF-44EC-A038-CE8AA3127347} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 29-Jul-2010 to: ongoing
	status: accepted Community's Parent: Larrea tridentata - Fouquieria splendens Upper Bajada & Rock Outcrop Desert Scrub Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.840595 NatureServe Explorer   Code: CEGL005138   Translated: Creosotebush - Brittlebush - Ocotillo Shrubland   Scientific: Larrea tridentata - Encelia farinosa - Fouquieria splendens Shrubland (convergence) and Synonyms: (similar) Larrea tridentata - Encelia farinosa - Fouquieria splendens Shrubland