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CEGL003136 Juniperus grandis / Sparse Understory Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Western Juniper / Sparse Understory 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. This association is typically found between 2195 and 2590 m (7200-8500 feet) of elevation. Stands typically grow on southeast and southwest aspects with high solar radiation. Slopes are often steeper than 20%, and sites prefer middle and upper slope positions. Stands have a high percentage of bare ground and surface rock, sometimes as much as 50%. This association is an open woodland with clumped and patchy tree distribution and high understory diversity. Juniperus grandis is the dominant tree. Common tree associates include Pinus contorta and Pinus jeffreyi. Quercus vacciniifolia is the dominant shrub. Holodiscus discolor, Linanthus pungens, and/or Spiraea splendens are often present. These shrubs are all common dry-site indicators. The herbaceous/graminoid layer is quite diverse though somewhat sparse. The most common species include Castilleja applegatei, Juncus nevadensis, Sedum obtusatum, Streptanthus tortuosus, and/or Juncus parryi. Many other herbaceous species can be present but at very low frequency and cover levels.
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: This association is an open woodland with clumped and patchy tree distribution and high understory diversity. Juniperus grandis (= Juniperus occidentalis var. australis) is the dominant tree. Common tree associates include Pinus contorta and Pinus jeffreyi. Quercus vacciniifolia is the dominant shrub. Holodiscus discolor, Linanthus pungens (= Leptodactylon pungens), and/or Spiraea splendens are often present. These shrubs are all common dry-site indicators. The herbaceous/graminoid layer is quite diverse though somewhat sparse. The most common species include Castilleja applegatei, Juncus nevadensis, Sedum obtusatum, Streptanthus tortuosus, and/or Juncus parryi. Many other herbaceous species can be present but at very low frequency and cover levels.
Dynamics: No Data Available
Environmental Description: This association is typically found between 2195 and 2590 m (7200-8500 feet) of elevation. Stands typically grow on southeast and southwest aspects with high solar radiation. Slopes are often steeper than 20%, and sites prefer middle and upper slope positions. Stands have a high percentage of bare ground and surface rock, sometimes as much as 50%.
Geographic Range: This woodland association is currently only known from along the eastside portions of the northern Sierra Crest in Yosemite National Park in California. Additional range information will be added as it becomes available.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683588
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: GNR
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.4 California Red Fir - Mountain Hemlock - Sierra Lodgepole Pine Forest Macrogroup | M025 | 1.B.2.Nd.4 |
| Group | 1.B.2.Nd.4.b Sierra Lodgepole Pine Woodland Group | G243 | 1.B.2.Nd.4.b |
| Alliance | A3622 Western Juniper - Whitebark Pine Woodland Alliance | A3622 | 1.B.2.Nd.4.b |
| Association | CEGL003136 Western Juniper / Sparse Understory Woodland | CEGL003136 | 1.B.2.Nd.4.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Juniperus grandis (Sawyer et al. 2009) [89.200.01]
= Juniperus occidentalis var. australis / Sparse Understory Woodland (Keeler-Wolf 2002)
= Juniperus occidentalis var. australis Woodland (Keeler-Wolf et al. 2012)
= Juniperus occidentalis var. australis / Sparse Understory Woodland (Keeler-Wolf 2002)
= Juniperus occidentalis var. australis Woodland (Keeler-Wolf et al. 2012)
- Keeler-Wolf, T. 2002. Classification of the vegetation of Yosemite National Park and surrounding environs in Tuolumne, Mariposa, Madera and Mono counties, California. NatureServe in cooperation with the California Native Plant Society and California Natural Heritage Program, Wildlife and Habitat Data Analysis Branch, California Department of Fish and Game, Sacramento, CA. August 2002.
- 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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.