NVCS

CEGL005587 Tsuga heterophylla / Vaccinium alaskaense / Oxalis oregana Forest

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Western Hemlock / Alaska Blueberry / Redwood Sorrel Forest

Colloquial Name: No Data Available

Hierarchy Level: Association

Type Concept: This western hemlock forest occurs in California, Oregon and Washington. The canopy and tree regeneration are dominated by Tsuga heterophylla. The well-developed shrub layer is dominated by Vaccinium alaskaense. Vaccinium parvifolium, Rubus spectabilis, Gaultheria shallon, and Menziesia ferruginea are usually present. The usually well-developed herb layer is dominated by Oxalis oregana. Blechnum spicant is always present to occasionally prominent. Polystichum munitum, Tiarella trifoliata, and Rubus pedatus are usually present in small amounts. In Washington, this association occurs on the western and south-central Olympic Peninsula, but probably not on the outer coastal strip. Sites are at low elevations on gentle slopes to flats, on lower to toeslopes and benches. Soils are mostly deep and well-drained.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: Very infrequent fire is the major factor distinguishing this association and ~Tsuga heterophylla - Pseudotsuga menziesii / Vaccinium alaskaense / Oxalis oregana Forest (CEGL005588)$$.

Similar NVC Types: No Data Available

note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: No Data Available

Dynamics: No Data Available

Environmental Description: No Data Available

Geographic Range: No Data Available

Nations: US

States/Provinces: CA, OR, WA

Plot Analysis Summary: http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.942775

Confidence Level: Low - Poorly Documented

Confidence Level Comments: No Data Available

Grank: GNR

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	A3377 Western Hemlock - Douglas-fir / Salmonberry Mesic Forest Alliance	A3377	1.B.2.Nd.3.c
Association	CEGL005587 Western Hemlock / Alaska Blueberry / Redwood Sorrel Forest	CEGL005587	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 / Oxalis oregana (Henderson et al. 1989)
< Tsuga heterophylla / Oxalis oregana (Kagan et al. 2004)
= Tsuga heterophylla / Vaccinium alaskaense / Oxalis oregana (Topik et al. 1986)
= Tsuga heterophylla/Vaccinium alaskaense/Oxalis oregana (Meidinger et al. 2005) [PNWCOAST_232]
= Tsuga heterophylla/Vaccinium alaskaense/Oxalis oregana Forest (Crawford et al. 2009) [PNWCOAST_232]
< Western hemlock / Oregon oxalis (TSHE/OXOR) (Hemstrom and Logan 1986)

Concept Author(s): Meidinger et al. (2005)

Author of Description: Crawford et al. (2009)

Acknowledgements: No Data Available

Version Date: 05-11-16

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Topik, C., N. M. Halverson, and D. G. Brockway. 1986. Plant associations and management guide for the western hemlock zone. R6-ECOL-230a-1986. USDA Forest Service, Gifford Pinchot National Forest, Pacific Northwest Region, Portland, OR. 137 pp.
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