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CEGL001718 Juniperus occidentalis / Artemisia rigida / Poa secunda Wooded Grassland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Western Juniper / Scabland Sagebrush / Sandberg Bluegrass Wooded Grassland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: In this association Juniperus occidentalis trees have low cover and are scattered across the landscape and Artemisia rigida cover ranges from 4-15% with low apparentness. However, in poor condition sites Artemisia rigida cover increases to more than 25%. Purshia tridentata occurs occasionally. Poa secunda is the dominant grass. Other common herbs include Festuca idahoensis and Pseudoroegneria spicata. On lower quality sites the non-native grass Bromus tectorum is dominant. This association occurs on substrates of lava, sedimentary and granitic origins in central and northeastern Oregon.

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 found in central and northeastern Oregon.

Nations: US

States/Provinces:  OR




Confidence Level: Low - Poorly Documented

Confidence Level Comments: No Data Available

Grank: G2G3

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: No Data Available

Concept Author(s): J. Titus

Author of Description: J. Titus

Acknowledgements: No Data Available

Version Date: 11-26-97

  • Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
  • Hall, F. C. 1973. Plant communities of the Blue Mountains in eastern Oregon and southeastern Washington. R6 Area Guide 3-1. USDA Forest Service, Pacific Northwest Region, Portland, OR. 62 pp.
  • Hall, F. C. 1978. Western juniper in association with other tree species. Pages in: R. E. Martin, J. E. Dealy, and D. L. Caraher, editors. Proceedings of the western juniper ecology/management workshop, January 1977, Bend, Oregon. General Technical Report PNW-74. USDA Forest Service, Pacific Northwest Range and Forest Experiment Station, Portland, OR.
  • Kagan, J. S., J. A. Christy, M. P. Murray, and J. A. Titus. 2004. Classification of native vegetation of Oregon. January 2004. Oregon Natural Heritage Information Center, Portland. 52 pp.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.