Print Report
CEGL008684 Pseudotsuga menziesii - Pinus ponderosa - Calocedrus decurrens Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Douglas-fir - Ponderosa Pine - Incense-cedar Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This forest 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 are found at mesic sites at low to mid elevations (1400-1800 m [4600-5900 feet]) on concave and linear, north- and northwest-facing, moderately steep to steep (15-60%) slopes. Soils are typically medium to deep and well-developed with textures that are mostly loams but can be rocky. Parent material is usually granitic but is occasionally gabbro. Penetrability is easy to medium. Fire has been generally suppressed in these areas. Stands form a two-story structure with an intermittent tree layer dominated by Pseudotsuga menziesii, Pinus ponderosa, and Calocedrus decurrens. Quercus kelloggii and Pinus lambertiana are also usually present in the tree layer. Abies lowiana can be found contributing to minor cover at higher elevations. Chamaebatia foliolosa is often dominant in the shrub layer. Toxicodendron diversilobum, Ceanothus integerrimus, Ceanothus sp., Cercocarpus montanus var. glaber, and Arctostaphylos patula may be present in the shrub layer.
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 form a two-story structure with an intermittent tree layer dominated by Pseudotsuga menziesii, Pinus ponderosa, and Calocedrus decurrens. Quercus kelloggii and Pinus lambertiana are also usually present in the tree layer. Abies lowiana (= Abies concolor var. lowiana) can be found contributing to minor cover at higher elevations. Chamaebatia foliolosa is often dominant in the shrub layer. Toxicodendron diversilobum, Ceanothus integerrimus, Ceanothus sp., Cercocarpus montanus var. glaber (= Cercocarpus betuloides), and Arctostaphylos patula may be present in the shrub layer.
Dynamics: Fire has been generally suppressed in these areas.
Environmental Description: Stands are found at mesic sites at low to mid elevations (1400-1800 m [4600-5900 feet]) on concave and linear, north- and northwest-facing, moderately steep to steep (15-60%) slopes. Soils are typically medium to deep and well-developed with textures that are mostly loams but can be rocky. Parent material is usually granitic but is occasionally gabbro. Penetrability is easy to medium.
Geographic Range: This association is only known from Yosemite National Park. Information about its global characteristics is not available without additional inventory.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685648
Confidence Level: Low
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 | A3673 Ponderosa Pine - Incense-cedar - Douglas-fir Forest Alliance | A3673 | 1.B.2.Nd.2.a |
| Association | CEGL008684 Douglas-fir - Ponderosa Pine - Incense-cedar Forest | CEGL008684 | 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: = Pseudotsuga menziesii - Pinus ponderosa - Calocedrus decurrens (Sawyer et al. 2009) [82.400.02]
= Pseudotsuga menziesii - Pinus ponderosa - Calocedrus decurrens Forest (Keeler-Wolf et al. 2012)
= Pseudotsuga menziesii - Pinus ponderosa - Calocedrus decurrens Forest (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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.