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CEGL008625 Pinus jeffreyi / Chrysolepis sempervirens Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Jeffrey Pine / Bush Chinquapin Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This woodland association is currently only known from Yosemite National Park and Inyo National Forest 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 (2100-2900 m [6900-9500 feet]) on gentle to somewhat steep (3-22°) slopes with variable aspects ranging from northeast to south. Soils are poorly developed to moderately well-developed with textures ranging from gravelly sandy rock to silt loam. These soils are shallow to deep and are usually well-drained. Parent material is granitic. Stands of this woodland are dominated by Pinus jeffreyi in the open to intermittent tree canopy and Chrysolepis sempervirens in the open to intermittent understory shrub layer. The tree canopy may occasionally include Abies lowiana, Abies magnifica, Pinus lambertiana, and Juniperus grandis. Understory species contribute to minor cover and may include Achnatherum webberi, Apocynum androsaemifolium, Quercus vacciniifolia, Arctostaphylos patula, Cistanthe monosperma, Cryptantha muricata, Eriogonum spergulinum var. reddingianum, Hydrophyllum occidentale, Lupinus confertus, Maianthemum racemosum ssp. racemosum, Pseudostellaria jamesiana, Pyrola picta, Rumex acetosella, Streptanthus tortuosus, and Symphoricarpos rotundifolius var. rotundifolius.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: The only descriptions of this association are from Yosemite National Park and the east side of the Sierra Nevada in the Mammoth area. This area is relatively moist given its proximity to the low gap in the Sierra Crest, suggesting additional moisture availability than is modal for the Sierra Nevada east side. A similar, if not identical, association has been described for granitic southerly facing slopes above 2255 m (7400 feet) elevation at Sentinel Meadow in Inyo County, east of the Sierra Crest (Talley 1978).
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 in the open to intermittent tree canopy and Chrysolepis sempervirens in the open to intermittent understory shrub layer. The tree canopy may occasionally include Abies lowiana (= Abies concolor var. lowiana), Abies magnifica, Pinus lambertiana, and Juniperus occidentalis. Understory species contribute to minor cover and may include Achnatherum webberi, Apocynum androsaemifolium, Quercus vacciniifolia, Arctostaphylos patula, Cistanthe monosperma, Hydrophyllum occidentale, Lupinus confertus, Maianthemum racemosum ssp. racemosum, Pseudostellaria jamesiana, Pyrola picta, Rumex acetosella, and Symphoricarpos rotundifolius var. rotundifolius. Herbs found at Inyo National Forest include Streptanthus tortuosus, Cryptantha muricata (= var. denticulata), and Eriogonum spergulinum var. reddingianum (Talley 1978).
Dynamics: No Data Available
Environmental Description: Stands of this woodland are found at mid to high elevations (2100-2900 m [6900-9500 feet]) on gentle to somewhat steep (3-22°) slopes with variable aspects ranging from northeast to south. Soils are poorly developed to moderately well-developed with textures ranging from gravelly sandy rock to silt loam. These soils are shallow to deep and are usually well-drained. Parent material is granitic.
Geographic Range: This association has been observed in the Sentinel Meadow candidate Research Natural Area within Inyo National Forest, California (Talley 1978), and in Yosemite National Park.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686604
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 | CEGL008625 Jeffrey Pine / Bush Chinquapin Woodland | CEGL008625 | 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 / Chrysolepis sempervirens (Sawyer et al. 2009) [87.020.20]
= Pinus jeffreyi/Chrysolepis sempervirens Woodland (Keeler-Wolf et al. 2012)
= Pinus jeffreyi/Chrysolepis sempervirens 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.
- 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.
- Talley, S. N. 1978. An ecological summary of the Sentinel Meadow candidate Research Natural Area on the Inyo National Forest, California. Unpublished report. USDA Forest Service, Pacific Southwest Research Station, Berkeley, CA.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.
- Wieslander, A. E. 1935. A vegetation type map of California. Madroño 3:140-144.