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CEGL000031 Abies lowiana - Abies magnifica var. shastensis / Ribes spp. Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Sierra White Fir - Shasta Red Fir / Currant species Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This community is common in the Klamath-Siskiyou Region of Oregon and probably also occurs in California and in the southern Cascades. Stands are usually on convex topography at mid-slopes and are found at elevations of 1160-1680 m (3800-5500 feet) on all but northern aspects. This mixed-conifer forest association has a lush understory. Abies lowiana usually dominates the tree canopy with lesser cover of Abies magnifica var. shastensis, Calocedrus decurrens, and Pseudotsuga menziesii. Typical understory plants include Ribes spp., Osmorhiza purpurea, Actaea rubra, and Melica subulata.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Only seven plots inventoried. The Ribes species are not identified in the literature. Atzet et al. (1996) re-classified this association as Abies concolor - Abies magnifica var. shastensis / Achlys triphylla, which is probably a better name.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This mixed-conifer forest association has a lush understory. Abies lowiana (= Abies concolor var. lowiana) usually dominates the tree canopy with lesser cover of Abies magnifica var. shastensis (= Abies x shastensis), Calocedrus decurrens, and Pseudotsuga menziesii. Typical understory plants include Ribes spp., Osmorhiza purpurea, Actaea rubra, and Melica subulata.
Dynamics: No Data Available
Environmental Description: Stands are usually on convex topography at mid-slopes and are found at elevations of 1160-1680 m (3800-5500 feet) on all but northern aspects.
Geographic Range: This community is found in the Klamath-Siskiyou Region of Oregon and probably California including the southern Cascades.
Nations: US
States/Provinces: CA?, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683874
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 | A3678 Sierra White Fir - California Red Fir - Shasta Red Fir Forest Alliance | A3678 | 1.B.2.Nd.2.a |
| Association | CEGL000031 Sierra White Fir - Shasta Red Fir / Currant species Forest | CEGL000031 | 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 - Abies X shastensis / Ribes spp. Forest (Atzet and Wheeler 1984)
= Abies concolor - Abies magnifica var. shastensis / Achlys triphylla (Atzet et al. 1996)
= Abies concolor - Abies magnifica var. shastensis / Achlys triphylla (Atzet et al. 1996)
- 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 D. L. Wheeler. 1984. Preliminary plant associations of the Siskiyou Mountains Province, Siskiyou National Forest. USDA Forest Service, Pacific Northwest Region, Portland, OR.
- 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.