Print Report
CEGL000184 Pinus ponderosa / Elymus glaucus Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Ponderosa Pine / Blue Wildrye Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This is an open woodland with 30-40% Pinus ponderosa cover. Pseudotsuga menziesii is common, especially on northern slopes, and is increasing with fire suppression. Shrubs are infrequent, with Symphoricarpos albus being the most common. Elymus glaucus is the dominant herbaceous species. Achillea millefolium is also common. This association is restricted to mid-elevation sites in northeastern Oregon. Topography ranges from undulating to steep slopes ranging from 2-20% with slope position from low to bottom. The aspect is usually southerly, although stands on northern aspects occur. The elevation ranges from 760 to 1525 m (2500-5000 feet). Effective rooting depth of the soil is 50.8-91.4 cm (20-36 inches), up to 121.9 cm (48 inches) in some stands.
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 restricted to mid-elevation sites in northeastern Oregon. The abiotic requirements are broad enough that it is likely that this association was formerly a common forest type.
Nations: US
States/Provinces: OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688785
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G2
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.2 Cool Temperate Forest & Woodland Formation | F008 | 1.B.2 |
| Division | 1.B.2.Nb Rocky Mountain Forest & Woodland Division | D194 | 1.B.2.Nb |
| Macrogroup | 1.B.2.Nb.2 Ponderosa Pine - Douglas-fir - Limber Pine Central Rocky Mountain Dry Forest Macrogroup | M501 | 1.B.2.Nb.2 |
| Group | 1.B.2.Nb.2.a Ponderosa Pine Central Rocky Mountain Open Woodland Group | G213 | 1.B.2.Nb.2.a |
| Alliance | A3447 Ponderosa Pine / Herbaceous Understory Central Rocky Mountain Open Woodland Alliance | A3447 | 1.B.2.Nb.2.a |
| Association | CEGL000184 Ponderosa Pine / Blue Wildrye Forest | CEGL000184 | 1.B.2.Nb.2.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pinus ponderosa / Elymus glaucus Forest (Hall 1973)
- 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.
- Head, S. C. 1959. Plant taxonomy and ecology of the East Eagle Creek Drainage of the Wallowa Mountains, Northeast Oregon. Unpublished dissertation, Oregon State University, Corvallis. 249 pp.
- 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.