Print Report
CEGL000121 Pseudotsuga menziesii - Tsuga heterophylla / Vaccinium ovatum / Polystichum munitum Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Douglas-fir - Western Hemlock / California Huckleberry / Western Swordfern Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is only found in the Coast Ranges of Oregon and occurs most often on steep, south- or west-facing slopes and ridges. Soil depth averages 122 cm (48 inches) with 91 cm (36 inches) of effective rooting depth. Pseudotsuga menziesii dominates the canopy. Tsuga heterophylla and Thuja plicata may occur in the canopy and regeneration layers. Stands of this association do not necessarily contain Tsuga heterophylla. In addition, Alnus rubra and Acer macrophyllum are sometimes present. The shrub layer is dense, usually occupying about 75% of the forest floor. Vaccinium ovatum is always present with cover averages of 20%. Other common shrubs include Gaultheria shallon, Vaccinium parvifolium, Acer circinatum, Mahonia nervosa, and small amounts of Rubus spectabilis. Polystichum munitum dominates the herb layer and Galium triflorum, Trillium ovatum, Blechnum spicant, Oxalis oregana and Claytonia sibirica are often present at low cover.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association needs to be compared with ~Pseudotsuga menziesii - Tsuga heterophylla / Vaccinium ovatum Forest (CEGL002614)$$.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Pseudotsuga menziesii dominates the canopy. Tsuga heterophylla and Thuja plicata may occur in the canopy and regeneration layers. Stands of this association do not necessarily contain Tsuga heterophylla. In addition, Alnus rubra and Acer macrophyllum are sometimes present. The shrub layer is dense, usually occupying about 75% of the forest floor. Vaccinium ovatum is always present with cover averages of 20%. Other common shrubs include Gaultheria shallon, Vaccinium parvifolium, Acer circinatum, Mahonia nervosa (= Berberis nervosa), and small amounts of Rubus spectabilis. Polystichum munitum dominates the herb layer and Galium triflorum, Trillium ovatum, Blechnum spicant, Oxalis oregana and Claytonia sibirica are often present at low cover.
Dynamics: No Data Available
Environmental Description: This association is only found in the Coast Ranges of Oregon and occurs most often on steep, south- or west-facing slopes and ridges in areas of high rainfall. Although this association is restricted by large-scale abiotic factors, such as high rainfall and southern and western exposures, it was formerly a fairly common forest type. Soil depth averages 122 cm (48 inches) with 91 cm (36 inches) of effective rooting depth.
Geographic Range: This association is restricted to the Coast Ranges of Oregon.
Nations: US
States/Provinces: OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685835
Confidence Level: Moderate
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.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 | A3378 Western Hemlock - Douglas-fir / Western Cordilleran Bunchberry Mesic Forest Alliance | A3378 | 1.B.2.Nd.3.c |
| Association | CEGL000121 Douglas-fir - Western Hemlock / California Huckleberry / Western Swordfern Forest | CEGL000121 | 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/Vaccinium ovatum/Polystichum munitum (Meidinger et al. 2005) [PNWCOAST_205]
= Western hemlock / evergreen huckleberry (TSHE/VAOV2) (Hemstrom and Logan 1986)
= Western hemlock / evergreen huckleberry (TSHE/VAOV2) (Hemstrom and Logan 1986)
- 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.
- Hemstrom, M. A., S. E. Logan, and W. Pavlat. 1987. Plant association and management guide, Willamette National Forest. Report R6-Ecol 257-B-86. USDA Forest Service, Pacific Northwest Region, Portland, OR. 312 pp.
- Hemstrom, M. A., and S. E. Logan. 1986. Plant association and management guide Siuslaw National Forest. Report R6-Ecol 220-1986a. USDA Forest Service, Pacific Northwest Region, Portland, OR. 121 pp.
- 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.
- McCain, C., and N. M. Diaz. 2002a. Field guide to the forested plant associations of the northern Oregon Coast Range. Siuslaw National Forest, USFS; Salem District, BLM; Eugene District, BLM. Technical Paper R6-NR-ECOL-TP-03-02. USDA Forest Service, Pacific Northwest Region, Portland, OR. 250 pp.
- Meidinger, D., C. Chappell, C. Cadrin, G. Kittel, C. McCain, K. Boggs, J. Kagan, G. Cushon, A. Banner, and T. DeMeo. 2005. International Vegetation Classification of the Pacific Northwest: International correlation of temperate coastal forest plant associations of Oregon, Washington, British Columbia and Alaska. Contributors: B.C. Ministry of Forests, USDA Forest Service, B.C. Conservation Data Centre, Alaska Natural Heritage Program, Washington Natural Heritage Program, and Oregon Natural Heritage Information Center.
- 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.