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CEGL000264 Abies lowiana / Vaccinium membranaceum Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Sierra White Fir / Thinleaf Huckleberry Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association occurs in Oregon''s southern Cascades and possibly in California. Occurrences are found at elevation of 915-1525 m (3000-5000 feet) on most aspects except south. Soils are basaltic, andesitic, or pumice/ash. This forest type is typified by uneven-aged stands of conifers with gaps occupied by hardwoods. Stands vary from relatively open to closed-canopy. The tree canopy is dominated by Pseudotsuga menziesii and Abies lowiana. Vaccinium membranaceum, Mahonia nervosa, Paxistima myrsinites, and Chimaphila umbellata are the most common species of the shrub layer. The herb layer is characterized by Achlys triphylla and Linnaea borealis ssp. longiflora.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Atzet and McCrimmon (1990) split this community into two types: Abies concolor / Vaccinium membranaceum / Linnaea borealis ssp. longiflora and Abies concolor / Vaccinium membranaceum / Achlys triphylla. This is only reported from the Rogue River National Forest. This spilt is only significant at a local level, and Oregon Natural Heritage Program considers this to be a good national type.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This forest type is typified by uneven-aged stands of conifers with gaps occupied by hardwoods. Stands vary from relatively open to closed-canopy. The tree canopy is dominated by Pseudotsuga menziesii and Abies lowiana (= Abies concolor var. lowiana) with average cover of 56%. Vaccinium membranaceum, Mahonia nervosa (= var. nervosa), Paxistima myrsinites, and Chimaphila umbellata are the most common species of the shrub layer which averages 60% cumulative cover. The herb layer averages cumulative 54% cover and is characterized by Achlys triphylla and Linnaea borealis ssp. longiflora.
Dynamics: No Data Available
Environmental Description: Occurrences are found at elevation of 915-1525 m (3000-5000 feet) on most aspects except south. Soils are basaltic, andesitic, or pumice/ash.
Geographic Range: This type is known only from mid elevations in the southern Oregon Cascade Range, although it might occur in the Klamath Mountains of northern California.
Nations: US
States/Provinces: CA?, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688428
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 | CEGL000264 Sierra White Fir / Thinleaf Huckleberry Forest | CEGL000264 | 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 / Vaccinium membranaceum / Achlys triphylla (Atzet and McCrimmon 1990)
> Abies concolor / Vaccinium membranaceum / Linnaea borealis ssp. longiflora (Atzet and McCrimmon 1990)
> Abies concolor / Vaccinium membranaceum / Linnaea borealis ssp. longiflora (Atzet and McCrimmon 1990)
- 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.
- 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.