Print Report
CEGL008627 Pinus jeffreyi / Arctostaphylos patula Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Jeffrey Pine / Greenleaf Manzanita Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is found at the mid to upper elevations in the Sierra Nevada of California and appears more commonly in the south and east sides. Stands often cover tens of acres and occasionally cover several hundreds of acres. Stands of this woodland are found at mid to high elevations (2030-2900 m [6660-9520 feet]) on gentle to steep (4-64%) slopes of variable, but mostly southeast and southwest, aspects. These sites are on middle and upper slopes and ridgetops. There are significantly higher levels of bare ground, surface gravel and bare rock compared to other sites. This association is found on poorly developed to moderately developed soils with textures ranging from rocky to sandy loam on a granitic substrate. Parent material is granitic but some were derived from volcanic materials. Soil depths are usually moderately deep to deep (13-100+ cm [5-40+ inches]), and textures are sand, sandy loams and loams. Drainage is usually excessive due to coarse soil textures. Stands of this woodland form an open tree layer underlain by a dense shrub layer. The open tree canopy is dominated by Pinus jeffreyi. Abies magnifica is often present and Abies lowiana is occasionally present. In some cases, Pinus jeffreyi is less abundant than Abies magnifica and Abies lowiana. The shrub layer consists of Arctostaphylos patula or Ceanothus velutinus. Other shrubs also found in this association include Chrysolepis sempervirens, Ceanothus cordulatus, Arctostaphylos nevadensis, and Prunus emarginata. The open herb layer may include low amounts of Arabis platysperma var. howellii, Gayophytum eriospermum, Pedicularis semibarbata, Cistanthe umbellata, Erigeron breweri, Eriogonum nudum, Monardella odoratissima ssp. pallida, Erigeron peregrinus, Elymus elymoides, and Achnatherum occidentale.
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 form an open tree layer underlain by a dense shrub layer. The open tree canopy is dominated by Pinus jeffreyi. Abies magnifica is often present and Abies lowiana (= Abies concolor var. lowiana) is occasionally present. In some cases, Pinus jeffreyi is less abundant than Abies magnifica and Abies lowiana. The shrub layer consists of Arctostaphylos patula or Ceanothus velutinus. Other shrubs also found in this association include Chrysolepis sempervirens (= Castanopsis sempervirens), Ceanothus cordulatus, Arctostaphylos nevadensis, and Prunus emarginata. The open herb layer may include low amounts of Arabis platysperma var. howellii, Gayophytum eriospermum, Pedicularis semibarbata, Cistanthe umbellata (= Calyptridium umbellatum), Erigeron breweri, Eriogonum nudum, Monardella odoratissima ssp. pallida, Erigeron peregrinus, Elymus elymoides, and Achnatherum occidentale (Potter 1994).
Dynamics: No Data Available
Environmental Description: Stands of this woodland are found at mid to high elevations (2030-2900 m [6660-9520 feet]) on gentle to steep (4-64%) slopes of variable, but mostly southeast and southwest, aspects. These sites are on middle and upper slopes and ridgetops. There are significantly higher levels of bare ground, surface gravel and bare rock compared to other sites. This association is found on poorly developed to moderately developed soils with textures ranging from rocky to sandy loam on a granitic substrate. Parent material is granitic but some were derived from volcanic materials. Soil depths are usually moderately deep to deep (13-100+ cm [5-40+ inches]), and textures are sand, sandy loams and loams. Drainage is usually excessive due to coarse soil textures (Potter 1994).
Geographic Range: This association is found at the mid to upper elevations in the Sierra Nevada and appears more commonly in the south and east sides. Stands often cover tens of acres and occasionally cover several hundreds of acres (Potter 1994).
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687143
Confidence Level: High
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 | CEGL008627 Jeffrey Pine / Greenleaf Manzanita Woodland | CEGL008627 | 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 patula - Ceanothus velutinus (Potter 1998)
= Pinus jeffreyi / Arctostaphylos patula (Sawyer et al. 2009) [87.020.09]
= Pinus jeffreyi/Arctostaphylos patula Woodland (Keeler-Wolf et al. 2012)
= Pinus jeffreyi / Arctostaphylos patula (Sawyer et al. 2009) [87.020.09]
= Pinus jeffreyi/Arctostaphylos patula 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.
- Potter, D. A. 1994. Guide to forested communities of the upper montane in the central and southern Sierra Nevada. Technical Publication R5-ECOL-TP-003. USDA Forest Service, Pacific Southwest Region, San Francisco, CA.
- Potter, D. A. 1998. Forested communities of the upper montane in the central and southern Sierra Nevada. USDA Forest Service, Pacific Southwest Research Station, Albany, CA. 319 pp.
- Sawyer, J. O., T. Keeler-Wolf, and J. Evens. 2009. A manual of California vegetation. Second edition. California Native Plant Society, Sacramento CA. 1300 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.