Print Report

CEGL000497 Tsuga heterophylla - (Pseudotsuga menziesii) / Oplopanax horridus / Polystichum munitum Forest

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Western Hemlock - (Douglas-fir) / Devil''s-club / Western Swordfern Forest

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This association occurs in the western Cascades and on the Olympic Peninsula at low to moderate elevations on lower slopes, terraces or depressions and is often associated with springs, seeps, or streams. Soils are subirrigated and poorly drained due to a shallow to impermeable layer that perches moving groundwater. The canopy is a variable mixture of Tsuga heterophylla, Pseudotsuga menziesii, Thuja plicata, and/or Alnus rubra. Tsuga heterophylla or Thuja plicata always occupy at least 10% total cover and dominate tree regeneration. Oplopanax horridus (over 10% cover) codominates or dominates the shrub layer. Acer circinatum and Rubus spectabilis are frequent and sometimes codominant. The well-developed, diverse herb layer almost always has Polystichum munitum present to codominant. Other frequent to codominant herbs include Oxalis oregana, Athyrium filix-femina, and Tiarella trifoliata.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This association is defined as a PNV vegetation type.

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: CA,US

States/Provinces:  BC, OR, WA


Confidence Level: Low

Confidence Level Comments: No Data Available
Grank: G4

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 CEGL000497 Western Hemlock - (Douglas-fir) / Devil''s-club / Western Swordfern Forest CEGL000497 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: >< Thuja plicata - Tsuga heterophylla / Oplopanax horridum - (Athyrium filix-femina - Gymnocarpium dryopteris) (Kovalchik 2001) [Cascadian plots included here.]
= Thuja plicata - Tsuga heterophylla / Oplopanax horridus / Polystichum munitum (Chappell 2006b) [7 plots]
? Thuja plicata-Tsuga heterophylla/Oplopanax horridum/Athyrium filix-femina Community Type (Franklin and Dyrness 1973)
= Tsuga heterophylla / Oplopanax horridum - Athyrium filix-femina (Henderson et al. 1992) [(p.50)]
= Tsuga heterophylla / Oplopanax horridum / Polystichum munitum (Topik et al. 1986) [(p.74)]
= Tsuga heterophylla / Oplopanax horridum (Henderson et al. 1989) [(p.314)]
= Tsuga heterophylla / Oplopanax horridum Association (Franklin et al. 1988) [(p.54)]
= Tsuga heterophylla / Oplopanax horridum Association (Chappell et al. 1997)
= Tsuga heterophylla-(Pseudotsuga menziesii)/Oplopanax horridus/Polystichum munitum (Meidinger et al. 2005) [PNWCOAST_264]
= Tsuga heterophylla-Pseudotsuga menziesii-(Thuja plicata)/Oplopanax horridus/Polystichum munitum Forest (Crawford et al. 2009)
= Tsuga heterophylla/Oplopanax horridum Association (Chappell 1997)
? Tsuga heterophylla/Oplopanax horridum Community Type (Mycek 1994)
? Tsuga heterophylla/Oplopanax horridus/Maianthemum stellatum-PNW (McCain and Diaz 2002b)
? Tsuga heterophylla/Oplopanax horridus/Maianthemum stellatum-PNW (Halverson et al. 1986)
? Tsuga heterophylla/Oplopanax horridus/Oxalis oregana-PNW (McCain and Diaz 2002b)
? Tsuga heterophylla/Oplopanax horridus/Oxalis oregana-PNW (Halverson et al. 1986)
? Tsuga heterophylla/Oplopanax horridus-NWO Coast-PNW (Hemstrom and Logan 1986)
? Tsuga heterophylla/Oplopanax horridus-NWO Coast-PNW (McCain and Diaz 2002a)
? Tsuga heterophylla/Vaccinium alaskaense-Oplopanax horridus-PNW (McCain and Diaz 2002b)
? Tsuga heterophylla/Vaccinium alaskaense-Oplopanax horridus-PNW (Halverson et al. 1986)
= Tsuga heterophylla-(Thuja plicata)/Oplopanax horridus/Polystichum munitum Forest (Chappell 2001)
? CWH ds 1 /07 (Green and Klinka 1994)
Concept Author(s): Crawford et al. (2009)

Author of Description: Crawford et al. (2009)

Acknowledgements: No Data Available

Version Date: 06-12-15
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