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CEGL002997 Hesperostipa comata - (Bouteloua eriopoda, Pleuraphis jamesii) Grassland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Needle-and-Thread - (Black Grama, James'' Galleta) Grassland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This herbaceous association is currently only known from Wupatki National Monument in Arizona, and the following description is based on occurrences there. Additional information will be added as it becomes available. Elevation ranges from 1560-1690 m (5118-5545 feet). The substrate always consists of a black cinder component, with intermixed basaltic cobbles, lava flow, clay, and limestone soils. The slope is often flat; however, it ranges from 0-25%. Total vegetation cover ranges from 25-60% with 0-20% in the shrub layer and 22-52% in the herbaceous layer. The total species diversity ranges from 5-17 species within the 21 samples. The shrub layer is not dominated by a single species; however, Ericameria nauseosa is often present. Hesperostipa comata is dominant. Bouteloua eriopoda and Pleuraphis jamesii both frequently occur within this association, but do not need to be present.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: No Data Available

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: No Data Available

Dynamics:  No Data Available

Environmental Description:  No Data Available

Geographic Range: This association is currently only known from Wupatki National Monument in Arizona. Additional range information will be added as it becomes available.

Nations: US

States/Provinces:  AZ




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: GNR

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Hesperostipa comata - (Bouteloua eriopoda - Pleuraphis jamesii) Herbaceous Vegetation (Hansen et al. 2004b)

Concept Author(s): M. Hansen et al. (2004b)

Author of Description: K.A. Schulz

Acknowledgements: No Data Available

Version Date: 05-06-10

  • Coles, J., M. Hansen, and K. Thomas. 2003. Wupatki National Monument, Arizona, vegetation classification and distribution: A USGS-NPS Vegetation Mapping Program study. Southwest Biological Science Center, U.S. Geological Survey Open-file Report. [in preparation]
  • Hansen, M., J. Coles, K. A. Thomas, D. Cogan, M. Reid, J. Von Loh, and K. Schulz. 2004b. USGS-NPS Vegetation Mapping Program: Wupatki National Monument, Arizona, vegetation classification and distribution. U.S. Geological Survey Technical Report. Southwest Biological Science Center, Flagstaff, AZ. 229 pp.
  • Kearsley, M. J. C., K. Green, M. Tukman, M. Reid, M. Hall, T. J. Ayers, and K. Christie. 2015. Grand Canyon National Park-Grand Canyon / Parashant National Monument vegetation classification and mapping project. Natural Resource Report NPS/GRCA/NRR--2015/913. National Park Service, Fort Collins, CO. 75 pp. plus appendices.
  • Reid, M. S., and M. E. Hall. 2010. Vegetation classification of Grand Canyon National Park. Draft report submitted to National Park Service, Fort Collins, CO.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.