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CEGL000037 Abies magnifica var. shastensis / Vaccinium membranaceum / Chimaphila umbellata Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Shasta Red Fir / Thinleaf Huckleberry / Pipsissewa Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association occurs in Oregon and California. The forests have a multi-storied tree canopy with high cover of shrubs. It averages 1630 m (5342 feet) elevation with slopes ranging 5-30% on predominantly northwestern aspects. Soil tends to be ash or basalt with the former being less productive. Abies magnifica var. shastensis dominates the tree canopy with an average 29-39% cover. Usually present are Pinus contorta, Tsuga mertensiana, Pseudotsuga menziesii, and Pinus monticola. The shrub layer averages 53% cover and is characterized by Vaccinium membranaceum and Chimaphila umbellata. Herb cover is generally low (8%) with Orthilia secunda and Anemone deltoidea often present. Grasses are usually absent. This association resembles ~Abies lowiana / Vaccinium membranaceum Forest (CEGL000264)$$, but is taller and has significant Abies magnifica var. shastensis cover. It also resembles ~Abies lowiana - Abies magnifica var. shastensis / Chimaphila umbellata Forest (CEGL000030)$$, but has a better developed understory. ~Abies magnifica var. shastensis / Carex inops ssp. inops Forest (CEGL000348)$$ is also similar except for the presence of Carex inops ssp. heliophila.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association was originally classified by Atzet and McCrimmon (1990) as Abies magnifica var. shastensis / Vaccinium membranaceum.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The forests have a multi-storied tree canopy with high cover of shrubs. Abies magnifica var. shastensis (= Abies x shastensis) dominates the tree canopy with an average 29-39% cover. Usually present are Pinus contorta (0-26%), Tsuga mertensiana (0-9%), Pseudotsuga menziesii (0-31%), and Pinus monticola (0-4%). The shrub layer averages 53% cover and is characterized by Vaccinium membranaceum (26-30%) and Chimaphila umbellata (7-12%). Herb cover is generally low (8%) with Orthilia secunda (= Pyrola secunda) (2%) and Anemone deltoidea (1%) often present. Grasses are usually absent.
Dynamics: No Data Available
Environmental Description: It averages 1630 m (5342 feet) elevation with slopes ranging 5-30% on predominantly northwestern aspects. Soil tends to be ash or basalt with the former being less productive.
Geographic Range: This association is native to the Klamath-Siskiyou and Southern Cascades region in Oregon and California. It could also be present in the northern Sierra Nevada and in the Modoc Plateau.
Nations: US
States/Provinces: CA, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685590
Confidence Level: Low
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.4 California Red Fir - Mountain Hemlock - Sierra Lodgepole Pine Forest Macrogroup | M025 | 1.B.2.Nd.4 |
| Group | 1.B.2.Nd.4.a California Red Fir - Shasta Red Fir - Mountain Hemlock Forest Group | G749 | 1.B.2.Nd.4.a |
| Alliance | A3619 California Red Fir - Shasta Red Fir Forest Alliance | A3619 | 1.B.2.Nd.4.a |
| Association | CEGL000037 Shasta Red Fir / Thinleaf Huckleberry / Pipsissewa Forest | CEGL000037 | 1.B.2.Nd.4.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Abies magnifica var. shastensis / Vaccinium membranaceum / Chimaphila umbellata Forest (DiPaolo et al. 2018)
= Abies magnifica var. shastensis / Vaccinium membranaceum (Atzet and McCrimmon 1990)
= Abies magnifica var. shastensis / Vaccinium membranaceum (Atzet and McCrimmon 1990)
- 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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.