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CEGL000110 Tsuga heterophylla / Quercus sadleriana Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Western Hemlock / Deer Oak Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This mixed-conifer/hardwood association occurs locally in southern Oregon and possibly northern California. The dominant overstory trees are Pseudotsuga menziesii, Pinus lambertiana, and Chamaecyparis lawsoniana. Understory trees include Tsuga heterophylla, Abies lowiana, and Chamaecyparis lawsoniana. Important shrubs are Quercus sadleriana, Gaultheria shallon, and Rhododendron macrophyllum. Typical herbs are Linnaea borealis and Chimaphila menziesii. Elevations range from 760-1220 m (2500-4000 feet). Soils are well-drained sandy loams, sandy clay loams, and silt loams underlain by granitic, dioritic, or sandstone parent material.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association includes the Tsuga heterophylla / Quercus sadleriana - Gaultheria shallon - Rhododendron macrophyllum association from Atzet et al. (1996).
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The dominant overstory trees are Pseudotsuga menziesii, Pinus lambertiana, and Chamaecyparis lawsoniana with 35%, 14%, and 25% cover, respectively. Understory trees include Tsuga heterophylla (5%), Abies lowiana (= Abies concolor var. lowiana) (5%), and Chamaecyparis lawsoniana (5%). Important shrubs are Quercus sadleriana (33%), Gaultheria shallon (51%), and Rhododendron macrophyllum (32%). Typical herbs are Linnaea borealis (10%) and Chimaphila menziesii (1%).
Dynamics: No Data Available
Environmental Description: This mixed-conifer/hardwood association occurs locally in southern Oregon and possibly northern California. Elevations range from 760-1220 m (2500-4000 feet). Soils are well-drained sandy loams, sandy clay loams, and silt loams underlain by granitic, dioritic, or sandstone parent material.
Geographic Range: Restricted to a fairly narrow area in Curry County, Oregon, and perhaps Del Norte County California.
Nations: US
States/Provinces: CA?, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685374
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G2
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.3 Western Hemlock - Sitka Spruce - Redwood Rainforest Macrogroup | M024 | 1.B.2.Nd.3 |
| Group | 1.B.2.Nd.3.c Douglas-fir - Western Hemlock / Salal Rainforest Group | G240 | 1.B.2.Nd.3.c |
| Alliance | A3376 Western Hemlock - Douglas-fir Serpentine Soil Forest Alliance | A3376 | 1.B.2.Nd.3.c |
| Association | CEGL000110 Western Hemlock / Deer Oak Forest | CEGL000110 | 1.B.2.Nd.3.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Tsuga heterophylla / Quercus sadleriana - Gaultheria shallon - Rhododendron macrophyllum (Atzet and Wheeler 1984)
? Tsuga heterophylla / Quercus sadleriana - Gaultheria shallon - Rhododendron macrophyllum association (Atzet et al. 1996)
? Tsuga heterophylla / Quercus sadleriana - Gaultheria shallon - Rhododendron macrophyllum association (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.