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CEGL000015 Abies lowiana / Chimaphila umbellata Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Sierra White Fir / Pipsissewa Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is native to Oregon''s Klamath-Siskiyou region and may occur in northwestern California. Stands are found at elevations of 1160-1500 m (3800-4900 feet) on southerly aspects with moderate to gentle slopes. Soils are not well-documented except that parent material is andesite or pumice. The dominant overstory species are Pseudotsuga menziesii and Abies lowiana. The most common understory plants are Chimaphila umbellata, Mahonia nervosa, Rubus ursinus, and Anemone deltoidea.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is similar to Atzet et al. (1996) Abies concolor / Mahonia nervosa / Achlys triphylla except it lacks the latter species at most plots. Based on six sample plots, Atzet and McCrimmon (1990) refer to this association as Abies concolor / Chimaphila umbellata / Pyrola.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The dominant overstory species are Pseudotsuga menziesii and Abies lowiana (= Abies concolor var. lowiana) with cover averaging 33% and 42%, respectively. The most common understory plants are Chimaphila umbellata (28%), Mahonia nervosa (= var. nervosa) (6%), Rubus ursinus (5%), and Anemone deltoidea (1%).
Dynamics: No Data Available
Environmental Description: This association is native to Oregon''s Klamath-Siskiyou region and may occur in northwestern California. Stands are found at elevations of 1160-1500 m (3800-4900 feet) on southerly aspects with moderate to gentle slopes. Soils are not well-documented except that parent material is andesite or pumice.
Geographic Range: This association is occurs in the Klamath-Siskiyou region in southwestern Oregon, and may occur in northwestern California.
Nations: US
States/Provinces: CA?, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688506
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 | A3674 Sierra White Fir - Douglas-fir Coastal, Cascadian & Sierran Forest Alliance | A3674 | 1.B.2.Nd.2.a |
| Association | CEGL000015 Sierra White Fir / Pipsissewa Forest | CEGL000015 | 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: = Abies concolor / Chimaphila umbellata / Pyrola (Atzet and McCrimmon 1990)
? Abies concolor / Chimaphila umbellata (Sawyer et al. 2009) [88.500.11]
? Abies concolor / Mahonia nervosa / Achlys triphylla (Atzet et al. 1996)
= Abies lowiana / Chimaphila umbellata Forest (DiPaolo et al. 2018)
? Abies concolor / Chimaphila umbellata (Sawyer et al. 2009) [88.500.11]
? Abies concolor / Mahonia nervosa / Achlys triphylla (Atzet et al. 1996)
= Abies lowiana / Chimaphila umbellata Forest (DiPaolo et al. 2018)
- Atzet, T. A., D. E. White, L. A. McCrimmon, P. A. Martinez, P. R. Fong, and V. D. Randall. 1996. Field guide to the forested plant associations of southwestern Oregon. Technical Paper R6-NR-ECOL-TP-17-96. USDA Forest Service, Pacific Northwest Region, Portland, OR.
- Atzet, T., and L. A. McCrimmon. 1990. Preliminary plant associations of the southern Oregon Cascade Mountain Province. USDA Forest Service, Pacific Northwest Region, Siskiyou National Forest, Grants Pass, OR. 330 pp.
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- DiPaolo, D. A., D. C. Odion, K. M. Rolih, P. Adamus, and D. A. Sarr. 2018. Vegetation classification and mapping: Crater Lake National Park. Natural Resource Report NPS/CRLA/NRR--2018/1663. National Park Service, Fort Collins, CO. 550 pp.
- Kagan, J. S., J. A. Christy, M. P. Murray, and J. A. Titus. 2004. Classification of native vegetation of Oregon. January 2004. Oregon Natural Heritage Information Center, Portland. 52 pp.
- McNeil, R .C. 1975. Vegetation and fire history of a ponderosa pine-white fir forest in Crater Lake National Park. M.S. thesis, Oregon State University, Corvallis.
- McNeil, R. C. and D. B. Zobel. 1980. Vegetation and fire history of a ponderosa pine-white fir forest in Crater Lake National Park. Northwest Science 54:30-46.
- 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.