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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
							
							
								Plot Analysis Summary:  
								http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686993
							
						
								Confidence Level: Low
							
							
								Confidence Level Comments: No Data Available
							
						
								Grank: GNR
							
							
								Greasons: No Data Available
							
						| Type | Name | Database Code | Classification Code | 
|---|---|---|---|
| Class | 3 Desert & Semi-Desert Class | C03 | 3 | 
| Subclass | 3.B Cool Semi-Desert Scrub & Grassland Subclass | S11 | 3.B | 
| Formation | 3.B.1 Cool Semi-Desert Scrub & Grassland Formation | F033 | 3.B.1 | 
| Division | 3.B.1.Ne Western North American Cool Semi-Desert Scrub & Grassland Division | D040 | 3.B.1.Ne | 
| Macrogroup | 3.B.1.Ne.1 Yellow Rabbitbrush - Blackbrush / Indian Ricegrass Dry Shrubland & Grassland Macrogroup | M171 | 3.B.1.Ne.1 | 
| Group | 3.B.1.Ne.1.c James'' Galleta - Indian Ricegrass - Needle-and-Thread Semi-Desert Grassland Group | G311 | 3.B.1.Ne.1.c | 
| Alliance | A1270 Needle-and-Thread Grassland Alliance | A1270 | 3.B.1.Ne.1.c | 
| Association | CEGL002997 Needle-and-Thread - (Black Grama, James'' Galleta) Grassland | CEGL002997 | 3.B.1.Ne.1.c | 
								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)
							
						- 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.