Print Report

CEGL005543 Pseudotsuga menziesii - Tsuga heterophylla / Mahonia nervosa - Polystichum munitum Forest

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Douglas-fir - Western Hemlock / Cascade Barberry - Western Swordfern Forest

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This Douglas-fir forest of British Columbia, Washington, Oregon and possibly California has a canopy dominated by Pseudotsuga menziesii or codominated by that species and Tsuga heterophylla. Thuja plicata is usually present, often prominent and occasionally codominant. The well-developed shrub layer has Mahonia nervosa prominent to codominant. Acer circinatum is sometimes codominant, forming a taller layer. Gaultheria shallon is usually present, but always in small amounts. The typically well-developed herb layer is dominated by Polystichum munitum usually with low abundance of other species. In Washington, this association occurs in the western Cascades and Olympic Peninsula, although it is absent from the outer coastal strip. It occurs at low elevations. Sites have well-drained, mesic soils and are located on mid- to toeslopes, benches and bottoms.

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 codominated by that species and Tsuga heterophylla. Thuja plicata is usually present, often prominent and occasionally codominant. The well-developed shrub layer has Mahonia nervosa (= Berberis nervosa) prominent to codominant. Acer circinatum is sometimes codominant, forming a taller layer. Gaultheria shallon is usually present, but always in small amounts. The typically well-developed herb layer is dominated by Polystichum munitum usually with low abundance of other species.

Dynamics:  No Data Available
Environmental Description:  No Data Available
Geographic Range: No Data Available

Nations: CA,US

States/Provinces:  BC, CA?, OR, WA


Confidence Level: Low - Poorly Documented

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 CEGL005543 Douglas-fir - Western Hemlock / Cascade Barberry - Western Swordfern Forest CEGL005543 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: > Picea sitchensis/Blechnum spicant-Polystichum munitum Association (Bigley and Hull 1995)
> Picea sitchensis/Blechnum spicant/Polystichum munitum-Olympics (Bigley and Hull 1995)
= Pseudotsuga menziesii - Tsuga heterophylla / Mahonia nervosa - Polystichum munitum (Chappell 2006b) [45 plots]
= Pseudotsuga menziesii - Tsuga heterophylla / Mahonia nervosa - Polystichum munitum (Chappell 1997)
= Pseudotsuga menziesii - Tsuga heterophylla / Mahonia nervosa - Polystichum munitum (Chappell 2001)
>< Pseudotsuga menziesii - Tsuga heterophylla / Polystichum munitum (Kagan et al. 2004)
= Pseudotsuga menziesii-Tsuga heterophylla/Mahonia nervosa-Polystichum munitum (Meidinger et al. 2005) [PNWCOAST_191]
= Pseudotsuga menziesii-Tsuga heterophylla/Mahonia nervosa-Polystichum munitum Forest (Crawford et al. 2009) [PNWCOAST_191]
>< Tsuga heterophylla - Pseudotsuga menziesii / Polystichum munitum (Topik et al. 1986)
>< Tsuga heterophylla / Berberis nervosa (Henderson et al. 1989)
>< Tsuga heterophylla / Berberis nervosa (Henderson et al. 1992)
>< Tsuga heterophylla / Mahonia nervosa var. nervosa (Kagan et al. 2004)
? Tsuga heterophylla / Polystichum munitum - Berberis nervosa (Henderson et al. 1992)
? Tsuga heterophylla / Polystichum munitum - Gaultheria shallon (Henderson et al. 1992)
>< Tsuga heterophylla / Polystichum munitum - Oxalis oregana (Henderson et al. 1989)
>< Tsuga heterophylla / Polystichum munitum (Topik et al. 1986)
>< Tsuga heterophylla / Polystichum munitum (Kagan et al. 2004)
> Tsuga heterophylla/Blechnum spicant-Montia siberica Association (Bigley and Hull 1995)
> Tsuga heterophylla/Menziesia ferruginea-Blechnum spicant Association (Bigley and Hull 1995)
> Tsuga heterophylla/Polystichum munitum Association (Bigley and Hull 1995)
= Tsuga heterophylla association (Stumpf et al. 2017)
>< Western hemlock / dwarf Oregon-grape (TSHE/BENE) (Hemstrom and Logan 1986)
>< Western hemlock / swordfern (TSHE/POMU) (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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