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CEGL005537 Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon - Holodiscus discolor Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Douglas-fir - Western Hemlock / Salal - Oceanspray Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This Douglas-fir - western hemlock forest of Washington and Oregon has a canopy dominated by Pseudotsuga menziesii or a mixture of that species and Tsuga heterophylla. Thuja plicata is often present and sometimes prominent to codominant. Tsuga heterophylla dominates tree regeneration and typically occupies over 10% total cover. The well-developed shrub layer is always dominated by Gaultheria shallon. Holodiscus discolor is always present and usually has over 2% cover. Mahonia nervosa is usually prominent. Rosa gymnocarpa and Symphoricarpos hesperius are usually present. The herb layer is usually sparse. Typical species include Linnaea borealis, Chimaphila umbellata, Achlys californica and/or Achlys triphylla, and Campanula scouleri. This association occurs on the northern and eastern Olympic Peninsula and possibly in the western Cascades. It is most common in the Puget Lowland between the Cascades and Olympic Mountains. Sites are at low to occasionally moderate elevations on shallow or rocky well-drained soils, mostly on southerly or westerly aspects.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: No Data Available
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The canopy is dominated by Pseudotsuga menziesii or a mixture of that species and Tsuga heterophylla. Thuja plicata is often present and sometimes prominent to codominant. Tsuga heterophylla dominates tree regeneration and typically occupies over 10% total cover. The well-developed shrub layer is always dominated by Gaultheria shallon. Holodiscus discolor is always present and usually has over 2% cover. Mahonia nervosa (= Berberis nervosa) is usually prominent. Rosa gymnocarpa and Symphoricarpos hesperius are usually present. The herb layer is usually sparse. Typical species include Linnaea borealis, Chimaphila umbellata, Achlys californica and/or Achlys triphylla, and Campanula scouleri.
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: No Data Available
Nations: US
States/Provinces: OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.942449
Confidence Level: Low - Poorly Documented
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 | A3379 Western Hemlock - Douglas-fir / Oceanspray Dry Forest Alliance | A3379 | 1.B.2.Nd.3.c |
| Association | CEGL005537 Douglas-fir - Western Hemlock / Salal - Oceanspray Forest | CEGL005537 | 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 - Tsuga heterophylla / Gaultheria shallon - Holodiscus discolor (Chappell 2006b) [13 plots]
= Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon - Holodiscus discolor Forest (Copass and Ramm-Granberg 2016a)
< Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon (Kagan et al. 2004)
= Pseudotsuga menziesii-Abies grandis-Tsuga heterophylla/Gaultheria shallon-Holodiscus discolor (Agee 1987)
= Pseudotsuga menziesii-Tsuga heterophylla/Gaultheria shallon-Holodiscus discolor (Meidinger et al. 2005) [PNWCOAST_184]
= Pseudotsuga menziesii-Tsuga heterophylla/Gaultheria shallon-Holodiscus discolor Forest (Crawford et al. 2009) [PNWCOAST_184]
= Tsuga heterophylla/Gaultheria shallon-Holodiscus discolor (Henderson et al. 1989)
= Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon - Holodiscus discolor Forest (Copass and Ramm-Granberg 2016a)
< Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon (Kagan et al. 2004)
= Pseudotsuga menziesii-Abies grandis-Tsuga heterophylla/Gaultheria shallon-Holodiscus discolor (Agee 1987)
= Pseudotsuga menziesii-Tsuga heterophylla/Gaultheria shallon-Holodiscus discolor (Meidinger et al. 2005) [PNWCOAST_184]
= Pseudotsuga menziesii-Tsuga heterophylla/Gaultheria shallon-Holodiscus discolor Forest (Crawford et al. 2009) [PNWCOAST_184]
= Tsuga heterophylla/Gaultheria shallon-Holodiscus discolor (Henderson et al. 1989)
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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.