Print Report
A3728 Callitropsis nootkatensis - Tsuga mertensiana - Abies amabilis Forest & Woodland Alliance
Type Concept Sentence: These are mature forests, commonly mixed stands with Callitropsis nootkatensis and Abies amabilis and/or Tsuga mertensiana. These are primarily subalpine forests which are found at elevations over 1000 m, primarily west of the Cascade Crest, where maritime influence and deep winter snowpacks are typical. This alliance occurs in the northern Cascades and Olympic Mountains and into British Columbia.
Common (Translated Scientific) Name: Alaska-cedar - Mountain Hemlock - Pacific Silver Fir Forest & Woodland Alliance
Colloquial Name: Alaska-cedar - Mountain Hemlock - Pacific Silver Fir Forest & Woodland
Hierarchy Level: Alliance
Type Concept: These are mature forests, commonly mixed stands with Callitropsis nootkatensis and Abies amabilis and/or Tsuga mertensiana. Canopies in these stands can range from closed to somewhat open, often with multiple tree layers and copious woody debris. These are primarily subalpine forests which are found at elevations over 1000 m, primarily west of the Cascade Crest, where maritime influence and deep winter snowpacks are typical. Precipitation ranges from 150-400 cm annually, falling largely as snow, and snowpacks usually linger into June or later. Communities within this alliance occur at the ecotone between the high montane and subalpine zones and therefore contain species indicative of each zone. Vegetation types within this alliance occur in cold, snowy environments in the northern Cascades and Olympic Mountains.
Diagnostic Characteristics: Forests dominated by Callitropsis nootkatensis.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: These are yellow-cedar stands in the lower 48 and southern maritime British Columbia.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: These are mature forests, commonly mixed stands with Callitropsis nootkatensis (= Chamaecyparis nootkatensis) and Abies amabilis and/or Tsuga mertensiana. Canopies in these stands can range from closed to somewhat open, often with multiple tree layers and copious woody debris.
Dynamics: No Data Available
Environmental Description: These are primarily subalpine forests which are found at elevations over 1000 m, primarily west of the Cascade Crest, where maritime influence and deep winter snowpacks are typical. Precipitation ranges from 150-400 cm annually, falling largely as snow, and snowpacks usually linger into June or later. Communities within this alliance occur at the ecotone between the high montane and subalpine zones and therefore contain species indicative of each zone.
Geographic Range: This alliance is found in Oregon, Washington and British Columbia.
Nations: CA,US
States/Provinces: BC, OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.899780
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.4 California Red Fir - Mountain Hemlock - Sierra Lodgepole Pine Forest Macrogroup | M025 | 1.B.2.Nd.4 |
| Group | 1.B.2.Nd.4.c Mountain Hemlock - Pacific Silver Fir - Alaska-cedar Wood Group | G849 | 1.B.2.Nd.4.c |
| Alliance | A3728 Alaska-cedar - Mountain Hemlock - Pacific Silver Fir Forest & Woodland Alliance | A3728 | 1.B.2.Nd.4.c |
Concept Lineage: A.NCCN-023
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- Faber-Langendoen, D., J. Drake, M. Hall, G. Kittel, S. Menard, C. Nordman, M. Pyne, M. Reid, M. Russo, K. Schulz, L. Sneddon, K. Snow, and J. Teague. 2013-2019b. Screening alliances for induction into the U.S. National Vegetation Classification: Part 1 - Alliance concept review. NatureServe, Arlington, VA.