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CEGL005532 Pseudotsuga menziesii / Gaultheria shallon - Vaccinium parvifolium Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Douglas-fir / Salal - Red Huckleberry Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This Douglas-fir forest of California, Washington and Oregon has a canopy dominated by Pseudotsuga menziesii. Tsuga heterophylla or Thuja plicata may occur in small amounts in the understory (under 5-10% cover), but Pseudotsuga is usually the most abundant regenerating tree. The shrub layer is well-developed and dominated by Gaultheria shallon. Mahonia nervosa is usually prominent and Vaccinium parvifolium is usually present. Acer circinatum is prominent in many stands. Holodiscus discolor and Rosa gymnocarpa are frequent in small amounts. The herb layer is absent or rather poorly developed typically. Festuca occidentalis or Linnaea borealis are often present in small amounts. This association occurs at low to middle elevations and occupies dry, often steep sites. It is usually found on southern or western aspects, with shallow or gravelly/stony soils.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: ~Pseudotsuga menziesii / Gaultheria shallon - Holodiscus discolor Forest (CEGL005531)$$ is similar but has higher cover of Holodiscus discolor and lacks Acer circinatum and Vaccinium parvifolium.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The canopy is dominated by Pseudotsuga menziesii. Tsuga heterophylla or Thuja plicata may occur in small amounts in the understory (under 5-10% cover), but Pseudotsuga is usually the most abundant regenerating tree. The shrub layer is well-developed and dominated by Gaultheria shallon. Mahonia nervosa (= Berberis nervosa) is usually prominent and Vaccinium parvifolium is usually present. Acer circinatum is prominent in many stands. Holodiscus discolor and Rosa gymnocarpa are frequent in small amounts. The herb layer is absent or rather poorly developed typically. Festuca occidentalis or Linnaea borealis are often present in small amounts.
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: No Data Available
Nations: CA,US
States/Provinces: BC, CA, OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.942446
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G3G4
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 | A3379 Western Hemlock - Douglas-fir / Oceanspray Dry Forest Alliance | A3379 | 1.B.2.Nd.3.c |
| Association | CEGL005532 Douglas-fir / Salal - Red Huckleberry Forest | CEGL005532 | 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: < Pseudotsuga menziesii / Gaultheria shallon (Henderson et al. 1989)
= Pseudotsuga menziesii/Gaultheria shallon-Vaccinium parvifolium (Meidinger et al. 2005) [PNWCOAST_124]
= Pseudotsuga menziesii/Gaultheria shallon-Vaccinium parvifolium Forest (Crawford et al. 2009) [PNWCOAST_124]
= Pseudotsuga menziesii/Gaultheria shallon-Vaccinium parvifolium (Meidinger et al. 2005) [PNWCOAST_124]
= Pseudotsuga menziesii/Gaultheria shallon-Vaccinium parvifolium Forest (Crawford et al. 2009) [PNWCOAST_124]
- Agee, J. K., and R. Wasem. 1987. Stetattle Creek Research Natural Area. Federal Research Natural Areas in Oregon and Washington. Supplement No. 25. 25 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.
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- WNHP [Washington Natural Heritage Program]. 2018. Unpublished data files. Washington Natural Heritage Program, Department of Natural Resources, Olympia, WA.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.
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