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CEGL000062 Pinus ponderosa / Arctostaphylos patula - Ceanothus velutinus Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Ponderosa Pine / Greenleaf Manzanita - Snowbrush Ceanothus Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This is a ponderosa pine woodland known from interior valleys in southwestern Oregon and northwestern California. This association consists of a physiognomic mosaic of patches dominated by evergreen shrubs and, alternatively, grasses. It primarily occurs on southern and southwestern aspects between 1040 and 1710 m (3400-5600 feet) elevation. Pinus ponderosa is the only dominant tree, but individuals of Pseudotsuga menziesii or Abies grandis can occasionally be found. Arctostaphylos patula and Ceanothus velutinus are the dominant shrubs, although Chrysolepis chrysophylla (which can be a tall shrub or a tree) may gain importance on western and southwestern exposures. Important grasses include Carex inops, Bromus orcuttianus, Festuca idahoensis and Elymus elymoides. Pteridium aquilinum is one of many forbs or ferns which are found in this community.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Sherman (1969) refers to this community as Pinus ponderosa / Arctostaphylos patula - Ceanothus velutinus / Pteridium aquilinum. Johnson (1961a) describes it as Pinus ponderosa / Castanopsis chrysophylla / Arctostaphylos patula / Ceanothus velutinus. Franklin et al. (1972) describe a similar "Pacific ponderosa pine" association.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association consists of a physiognomic mosaic of patches dominated by evergreen shrubs and, alternatively, grasses. Pinus ponderosa is the only dominant tree, but individuals of Pseudotsuga menziesii or Abies grandis can occasionally be found. Arctostaphylos patula and Ceanothus velutinus are the dominant shrubs, although Chrysolepis chrysophylla (= Castanopsis chrysophylla) (which can be a tall shrub or a tree) may gain importance on western and southwestern exposures. Important grasses include Carex inops, Bromus orcuttianus, Festuca idahoensis and Elymus elymoides. Pteridium aquilinum is one of many forbs or ferns which are found in this community.
Dynamics: No Data Available
Environmental Description: This is a ponderosa pine woodland known from interior valleys in southwestern Oregon and northwestern California. It primarily occurs on southern and southwestern aspects between 1040 and 1710 m (3400-5600 feet) elevation.
Geographic Range: This woodland is known from interior valleys in southwestern Oregon and northwestern California.
Nations: US
States/Provinces: CA?, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683120
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G1
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 | A3446 Ponderosa Pine / Shrub Understory Central Rocky Mountain Woodland Alliance | A3446 | 1.B.2.Nb.2.a |
| Association | CEGL000062 Ponderosa Pine / Greenleaf Manzanita - Snowbrush Ceanothus Woodland | CEGL000062 | 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 / Arctostaphylos patula - Ceanothus velutinus / Pteridium aquilinum (Sherman 1969)
? Pinus ponderosa / Castanopsis chrysophylla / Arctostaphylos patula / Ceanothus velutinus (Johnson 1961a)
? Pacific ponderosa pine association (Franklin et al. 1972)
? Pinus ponderosa / Castanopsis chrysophylla / Arctostaphylos patula / Ceanothus velutinus (Johnson 1961a)
? Pacific ponderosa pine association (Franklin et al. 1972)
- 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.
- Dealy, J. E. 1971. Habitat characteristics of the Silver Lake mule deer range. Research Paper PNW-125. USDA Forest Service, Pacific Northwest Forest and Range Experiment Station, Portland, OR. 99 pp.
- Dyrness, C. T. 1960. Soil-vegetation relationships within the ponderosa pine type in the central Oregon pumice region. Unpublished dissertation. Oregon State College, Corvallis.
- Dyrness, C. T., and C. T. Youngberg. 1966. Soil-vegetation relationships within the ponderosa pine type in the central Oregon pumice region. Ecology 47:122-138.
- Franklin, J. F., F. C. Hall, C. T. Dyrness, and C. Maser. 1972. Federal Research Natural Areas in Oregon and Washington: A guidebook for scientists and educators. USDA Forest Service, Pacific Northwest Forest and Range Experiment Station, Portland, OR.
- Johnson, J. M. 1961a. Taxonomy and ecology of the vascular plants of Black Butte, Oregon. M.S. thesis, Oregon State University, Corvallis, OR. 193 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.
- Sherman, R. J. 1969. Spatial and developmental patterns of vegetation of Black Butte, Oregon. Unpublished dissertation, Oregon State University, Corvallis. 80 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.