Print Report

CEGL002694 Arctostaphylos patula - Artemisia tridentata (ssp. vaseyana, ssp. wyomingensis) Shrubland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Greenleaf Manzanita - (Mountain Big Sagebrush, Wyoming Big Sagebrush) Shrubland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This mixed mountain shrubland association is characteristic of windswept highlands in the Colorado Plateau. It occurs in isolated patches on plateaus and mesas with gentle to moderate slopes and variable aspects. Elevations range from 1950 to 2500 m (6400-8200 feet). Most of the unvegetated surface is covered by litter, with occasional bedrock exposures. Soils are generally thin, coarse-textured, rapidly drained and derived from sandstone. This association often has a total vegetative cover of 60-85%. It is dominated by moderate to dense cover of Arctostaphylos patula. Artemisia tridentata ssp. vaseyana or Artemisia tridentata ssp. wyomingensis may be present to codominant. Amelanchier alnifolia, Amelanchier utahensis, Tetradymia canescens, Ericameria nauseosa, Yucca spp., and Opuntia spp. are also commonly present and may contribute 5 to 20% cover. The herbaceous layer is very sparse but will often include Carex rossii, Comandra umbellata, Eriogonum umbellatum, Poa fendleriana, and Bouteloua gracilis.

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: This mixed mountain shrubland association is characteristic of windswept highlands in the Colorado Plateau and has a total vegetation cover of 60- 85%. It is dominated by moderate to dense cover of Arctostaphylos patula. Artemisia tridentata ssp. vaseyana or Artemisia tridentata ssp. wyomingensis may be present to codominant. Amelanchier alnifolia, Amelanchier utahensis, Tetradymia canescens, Ericameria nauseosa, Yucca spp., and Opuntia spp. are also commonly present and may contribute 5 to 20% cover. The herbaceous layer is very sparse but will commonly include Carex rossii, Comandra umbellata, Eriogonum umbellatum, Poa fendleriana, and Bouteloua gracilis.

Dynamics:  This association appears to be limited to windswept sites with shallow, coarse, well-drained soils.

Environmental Description:  This association occurs in isolated patches on windward sites on plateaus and mesas in the Colorado Plateau. It is likely also to be found within the Great Basin. Sites may be gently to moderately sloping with variable aspect. Elevations range from 1950 to 2500 m (6400-8200 feet). Most of the unvegetated surface is covered by litter, with occasional bedrock exposures. Soils are generally thin, coarse-textured, rapidly drained and derived from sandstone.

Geographic Range: This association has been described from Zion National Park in southwestern Utah and Dinosaur National Monument in northwestern Colorado. It is likely to occur in isolated stands throughout the Colorado Plateau and Great Basin.

Nations: US

States/Provinces:  CO, UT




Confidence Level: Moderate

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: = Arctostaphylos patula - Artemisia tridentata ssp. vaseyana Shrubland (Cogan et al. 2004)

Concept Author(s): Cogan et al. (2004)

Author of Description: J. Coles

Acknowledgements: No Data Available

Version Date: 10-12-05

  • Cogan, D., M. Reid, K. Schulz, and M. Pucherelli. 2004. Zion National Park, Utah 1999-2003. Vegetation Mapping Project. Technical Memorandum 8260-03-01. Remote Sensing and GIS Group Technical Service Center, Bureau of Reclamation, Denver, CO. Appendix F: Vegetation Association Descriptions for Zion.
  • Coles, J., D. Cogan, D. Salas, A. Wight, G. Wakefield, J. Von Loh, and A. Evenden. 2008a. Vegetation classification and mapping project report, Dinosaur National Monument. Natural Resource Technical Report NPS/NCPN/NRTR-2008/112. National Park Service, Fort Collins, CO. 814 pp.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.