Print Report

CEGL005512 Abies amabilis - (Pseudotsuga menziesii) / Achlys triphylla - Tiarella trifoliata var. unifoliata Forest

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Pacific Silver Fir - (Douglas-fir) / Sweet After Death - Oneleaf Foamflower Forest

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This Pacific silver fir forest of Oregon and Washington has a canopy dominated by Abies amabilis, Pseudotsuga menziesii, Tsuga heterophylla, and/or Abies procera. Abies amabilis has over 10% total cover and dominates or codominates tree regeneration. The shrub layer varies from sparse to moderate and frequently has abundant Acer circinatum or Vaccinium membranaceum (the latter usually no more than 10% cover). The well-developed herb layer always has Achlys californica and/or Achlys triphylla present to more often prominent. Tiarella trifoliata var. unifoliata and/or Maianthemum stellatum are usually present and the combination of the two is typically over 5% cover. Clintonia uniflora is usually present to prominent. Linnaea borealis, Gymnocarpium dryopteris or Cornus unalaschkensis are occasionally prominent. At Mount Rainier and in the eastern and northern Olympic Mountains of Washington, this association occurs at middle elevations on sites with deep, well-drained, and moist soils.

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: No Data Available

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

Nations: US

States/Provinces:  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.d Pacific Silver Fir - Western Hemlock Rainforest Group G241 1.B.2.Nd.3.d
Alliance A3386 Pacific Silver Fir - Western Hemlock / Sweet After Death Forest Alliance A3386 1.B.2.Nd.3.d
Association CEGL005512 Pacific Silver Fir - (Douglas-fir) / Sweet After Death - Oneleaf Foamflower Forest CEGL005512 1.B.2.Nd.3.d
Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available
Synonomy: ? Abies amabilis / Tiarella trifoliata - Streptopus roseus (Henderson et al. 1992)
>< Abies amabilis / Tiarella trifoliata (Kagan et al. 2004)
>< Abies amabilis / Tiarella trifoliata (Brockway and Topik 1984)
= Abies amabilis-(Pseudotsuga menziesii)/Achlys triphylla-Tiarella trifoliata var. unifoliata (Meidinger et al. 2005) [PNWCOAST_007]
= Abies amabilis-(Pseudotsuga menziesii)/Achlys triphylla-Tiarella trifoliata var. unifoliata Forest (Crawford et al. 2009) [PNWCOAST_007]
> Abies amabilis/Acer circinatum/Tiarella trifoliata-PNW (McCain and Diaz 2002b)
= Abies amabilis/Achlys triphylla-Tiarella unifoliata Association (Henderson et al. 1989)
> Abies amabilis/Streptopus curvipes Association, Typical Phase (Franklin 1966)
> Abies amabilis/Tiarella trifoliata-PNW (Hemstrom et al. 1987)
> Abies amabilis/Tiarella trifoliata-PNW (McCain and Diaz 2002b)
> Abies amabilis/Tiarella unifoliata Association (Franklin et al. 1988)
> Abies amabilis/Tiarella unifoliata Association (Franklin 1966)
>< Pacific Silver Fir / Coolwort Foamflower Association (CF F1-52) ABAM/TIUN (Brockway et al. 1983)
>< Pacific silver fir / coolwort foamflower (ABAM/TIUN) (Hemstrom et al. 1982)
Concept Author(s): Meidinger et al. (2005)

Author of Description: Crawford et al. (2009)

Acknowledgements: No Data Available

Version Date: 05-10-16
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