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CEGL000817 Pinus jeffreyi / Festuca idahoensis ssp. roemeri Wooded Grassland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Jeffrey Pine / Roemer''s Fescue Wooded Grassland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is documented in the Klamath Mountains from the area of Grants Pass, Oregon, south to the area of Happy Camp, California. It has a typically park-like appearance of mostly mature pines scattered sparsely over a continuous grassland, occasionally supporting shrub patches. Stands occur at elevations of 530-1980 m (1740-6490 feet) with variable aspects and slopes of 3-48%. Soils are shallow (<25 cm depth) and derived from serpentine parent material. The vegetation is a very open-canopied woodland/savanna with dense grass cover. Pinus jeffreyi is the only overstory tree species represented at most sites and averages 21% cover. Pinus jeffreyi, Calocedrus decurrens, and Pseudotsuga menziesii are commonly in the understory with 8%, 10%, and 4% cover, respectively. Shrubs may be locally abundant, such as Ceanothus cuneatus (37%) and Arctostaphylos canescens (38%). The graminoid layer is dominated by Festuca idahoensis ssp. roemeri with 55% cover. An important forb, Achillea millefolium, averages 12% cover.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association was lumped into one type from three separate communities identified by Atzet et al. (1996): Pinus jeffreyi / Arctostaphylos canescens / Festuca idahoensis, Pinus jeffreyi / Ceanothus cuneatus / Festuca idahoensis, and Pinus jeffreyi / Festuca idahoensis.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association has a typically park-like appearance of mostly mature pines scattered sparsely over a continuous grassland, occasionally supporting shrub patches. The vegetation is a very open-canopied woodland/savanna with dense grass cover. Pinus jeffreyi is the only overstory tree species represented at most sites and averages 21% cover. Pinus jeffreyi, Calocedrus decurrens, and Pseudotsuga menziesii are commonly in the understory with 8%, 10%, and 4% cover, respectively. Shrubs may be locally abundant, such as Ceanothus cuneatus (37%) and Arctostaphylos canescens (38%). The graminoid layer is dominated by Festuca idahoensis ssp. roemeri (= Festuca roemeri) with 55% cover. An important forb, Achillea millefolium, averages 12% cover.
Dynamics: No Data Available
Environmental Description: Stands occur at elevations of 530-1980 m (1740-6490 feet) with variable aspects and slopes of 3-48%. Soils are shallow (<25 cm depth) and derived from serpentine parent material.
Geographic Range: This association is documented in the Klamath Mountains from the area of Grants Pass, Oregon, south to the area of Happy Camp, California.
Nations: US
States/Provinces: CA, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687377
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G3
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.Nd Vancouverian Forest & Woodland Division | D192 | 1.B.2.Nd |
| Macrogroup | 1.B.2.Nd.2 Incense-cedar - Jeffrey Pine - Sierra White Fir Forest Macrogroup | M023 | 1.B.2.Nd.2 |
| Group | 1.B.2.Nd.2.a Incense-cedar - Sugar Pine - Sierra White Fir Forest & Woodland Group | G344 | 1.B.2.Nd.2.a |
| Alliance | A3676 Jeffrey Pine - Washoe Pine Mixed Conifer Woodland Alliance | A3676 | 1.B.2.Nd.2.a |
| Association | CEGL000817 Jeffrey Pine / Roemer''s Fescue Wooded Grassland | CEGL000817 | 1.B.2.Nd.2.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: > Pinus jeffreyi / Arctostaphylos canescens / Festuca idahoensis (Atzet et al. 1996)
> Pinus jeffreyi / Ceanothus cuneatus / Festuca idahoensis (Atzet et al. 1996)
> Pinus jeffreyi / Festuca idahoensis (Atzet et al. 1996)
> Pinus jeffreyi / Ceanothus cuneatus / Festuca idahoensis (Atzet et al. 1996)
> Pinus jeffreyi / Festuca idahoensis (Atzet et al. 1996)
- Atzet, T. A., D. E. White, L. A. McCrimmon, P. A. Martinez, P. R. Fong, and V. D. Randall. 1996. Field guide to the forested plant associations of southwestern Oregon. Technical Paper R6-NR-ECOL-TP-17-96. USDA Forest Service, Pacific Northwest Region, Portland, OR.
- Atzet, T., and D. L. Wheeler. 1984. Preliminary plant associations of the Siskiyou Mountains Province, Siskiyou National Forest. USDA Forest Service, Pacific Northwest Region, Portland, OR.
- Jimerson, T. J., L. D. Hoover, E. A. McGee, G. DeNitto, and R. M. Creasy. 1995. A field guide to serpentine plant associations and sensitive plants in northwestern California. Technical Publication R5-ECOL-TP-006. USDA Forest Service, Pacific Southwest Region, San Francisco, CA.
- 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.