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CEGL008630 Pinus jeffreyi - Abies lowiana Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Jeffrey Pine - Sierra White Fir Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This woodland association is currently only known from Yosemite National Park in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. Stands of this woodland are found at mid to high elevations (1875-2530 m [6150-8300 feet]) on flat to steep (0-31°) slopes. Aspect varies; however, it is often southeast, south and southwest. These sites are typically found on poorly developed to well-developed soils with textures ranging from gravel to loam. Soils are well-drained to moderately well-drained and shallow to deep. Fire is common and disturbance levels are usually low at this association. Stands of this woodland are dominated by Pinus jeffreyi and Abies lowiana in the open overstory layer. Other tree species that may be found contributing to significantly less cover include Pinus lambertiana, Abies magnifica, Pinus contorta var. murrayana, Calocedrus decurrens, Quercus kelloggii, Pinus lambertiana, Populus tremuloides, and Juniperus occidentalis. Ceanothus cordulatus and Arctostaphylos patula are often in the understory shrub layer. Chrysolepis sempervirens, Prunus emarginata, Quercus vacciniifolia, Arctostaphylos nevadensis, and Artemisia tridentata may also be present, but in low numbers. Pteridium aquilinum var. pubescens is often in the herb layer. Other herbaceous species may include Gayophytum diffusum ssp. parviflorum, Apocynum androsaemifolium, Kelloggia galioides, Erigeron breweri, Eriogonum marifolium, and Hieracium albiflorum.
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: Stands of this woodland are dominated by Pinus jeffreyi and Abies lowiana (= Abies concolor var. lowiana) in the open overstory layer. Other tree species that may be found contributing to significantly less cover include Pinus lambertiana, Abies magnifica, Pinus contorta var. murrayana, Calocedrus decurrens, Quercus kelloggii, Pinus lambertiana, Populus tremuloides, and Juniperus occidentalis. Ceanothus cordulatus and Arctostaphylos patula are often in the understory shrub layer. Chrysolepis sempervirens, Prunus emarginata, Quercus vacciniifolia, Arctostaphylos nevadensis, and Artemisia tridentata may also be present, but in low numbers. Pteridium aquilinum var. pubescens is often in the herb layer. Other herbaceous species may include Gayophytum diffusum ssp. parviflorum, Apocynum androsaemifolium, Kelloggia galioides, Erigeron breweri, Eriogonum marifolium, and Hieracium albiflorum.
Dynamics: Fire is common and disturbance levels are usually low at this association.
Environmental Description: Stands of this woodland are found at mid to high elevations (1875-2530 m [6150-8300 feet]) on flat to steep (0-31°) slopes. Aspect varies; however, it is often southeast, south and southwest. These sites are typically found on poorly developed to well-developed soils with textures ranging from gravel to loam. Soils are well-drained to moderately well-drained and shallow to deep.
Geographic Range: This woodland association is currently only known from Yosemite National Park in California. Additional range information will be added as it becomes available.
Nations: US
States/Provinces: CA, NV
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683624
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G4?
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 | CEGL008630 Jeffrey Pine - Sierra White Fir Woodland | CEGL008630 | 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 - Abies concolor Woodland (Keeler-Wolf et al. 2012)
- Keeler-Wolf, T., M. Schindel, S. San, P. Moore, and D. Hickson. 2003a. Classification of the vegetation of Yosemite National Park and surrounding environs in Tuolumne, Mariposa, Madera and Mono counties, California. Unpublished report by NatureServe in cooperation with the California Native Plant Society and California Department of Fish and Game, Wildlife and Habitat Data Analysis Branch, Sacramento, CA.
- Keeler-Wolf, T., P. E. Moore, E. T. Reyes, J. M. Menke, D. N. Johnson, and D. L. Karavidas. 2012. Yosemite National Park vegetation classification and mapping project report. Natural Resource Technical Report NPS/YOSE/NRTR--2012/598. National Park Service, Fort Collins, CO.
- Peterson, E. B. 2008. International Vegetation Classification alliances and associations occurring in Nevada with proposed additions. Nevada Natural Heritage Program, Carson City, NV. 348 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.