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Salix drummondiana / Carex scopulorum var. prionophylla Wet Shrubland
Translated Name: Drummond's Willow / Fire-thread Sedge Wet Shrubland
Unique Identifier: CEGL001584
Classification Approach: International Vegetation Classification (IVC)
Summary: This association is relatively abundant in the subalpine zone of the northeast Cascades and less common in the Canadian Rockies of Washington. It may extend into British Columbia along the border. This wet, high-elevation shrub fen is usually located between 1220-1922 m (4000-6300 feet) elevation and is dominated by tall willows (over 2 m). It is usually found along very low- to moderately low-gradient streams or with ponds or lakes in fen shrublands. Soils are typically well-aerated, nutrient-rich sedge peat soils with a shallow water table and surface water apparent during the growing season. Salix drummondiana is the most common shrub although Salix boothii can be dominant. A shorter willow, Salix farriae, can be common and subdominant in some stands. Picea engelmannii trees usually appear in the fen as scattered individuals. Carex scopulorum var. prionophylla dominates the community and may share some space with Carex utriculata. Calamagrostis canadensis is the only other species that occurs regularly, although in low abundance. Sphagnum mosses are common and can be abundant.



Classification

Classification Confidence: Low

Vegetation Hierarchy
Class 2 - Shrub & Herb Vegetation
Subclass 2.C - Shrub & Herb Wetland
Formation 2.C.4 - Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland
Division 2.C.4.Nb - Western North American Temperate & Boreal Freshwater Marsh, Wet Meadow & Shrubland
Macrogroup Western North American Montane Marsh, Wet Meadow & Shrubland
Group Western Montane-Subalpine Riparian & Seep Shrubland
Alliance Western Montane Tall Willow Wet Shrubland

This is the revised vegetation hierarchy. For more information see Classification Sources and usnvc.org.

Similar Associations
Unique Identifier Name
CEGL002667 Salix drummondiana / Calamagrostis canadensis Wet Shrubland



Related Concepts from Other Classifications

Related Subnational Community Units
These data are subject to substantial ongoing revision and may be out of date for some states.
In the U.S., contact the state Heritage Program for the most complete and up-to-date information at: http://www.natureserve.org/natureserve-network.
Information from programs in other jurisdictions will be posted when they are made available.
Subnation Concept Name Relationship to Standard Confidence Reference
Idaho Salix drummondiana / Carex scopulorum var. prionophylla Shrubland Equivalent Certain IDCDC 2005
Oregon Salix drummondiana / Carex scopulorum var. prionophylla Equivalent Certain Kagan et al. 2004


Other Related Concepts
Related Concept Name: Salix / Carex scopulorum var. prionophylla
Relationship: = - Equivalent
Reference: Kovalchik, B. L. 2001. Classification and management of aquatic, riparian and wetland sites on the national forests of eastern Washington. Part 1: The series descriptions. 429 pp. plus appendix. [http://www.reo.gov/col/wetland_classification/wetland_classification.pdf]

Ecological Systems Placement

Ecological Systems Placement
Ecological System Unique ID Ecological System Name
CES306.832 Rocky Mountain Subalpine-Montane Riparian Shrubland


NatureServe Conservation Status
Global Status: G2G3 (16Oct2002)
Rounded Global Status: G2 - Imperiled
Reasons: This wetland association is relatively abundant in the subalpine zone of the northeast Cascades and less common in the Canadian Rockies of Washington and adjacent Idaho. It may extend into British Columbia along the border. Although geographically widespread, it actually occupies few acres, probably less than 5000. Idaho locations are threatened by livestock impacts. Few other threats are currently identified, although wetland associations are generally sensitive to alterations to hydrology.

Distribution
Color legend for Distribution Map
United States Distribution: ID, OR, WA
Global Distribution: Canada, United States
Global Range: This association is relatively abundant in the subalpine zone of the northeast Cascades and less common in the Canadian Rockies of Washington, and a few locations of northern Idaho. It may extend into British Columbia along the border.

U.S. Forest Service Ecoregions
Domain Name: Dry Domain
Division Name: Temperate Desert Division
Province Name: Intermountain Semi-Desert Province
Province Code: 342 Occurrence Status: Predicted or probable
Section Name: Northwestern Basin and Range Section
Section Code: 342B Occurrence Status: Predicted or probable
Division Name: Temperate Steppe Regime Mountains
Province Name: Middle Rocky Mountain Steppe - Coniferous Forest - Alpine Meadow Province
Province Code: M332 Occurrence Status: Confident or certain
Section Name: Idaho Batholith Section
Section Code: M332A Occurrence Status: Confident or certain
Province Name: Northern Rocky Mountain Forest - Steppe - Coniferous Forest - Alpine Meadow Province
Province Code: M333 Occurrence Status: Confident or certain
Section Name: Okanogan Highlands Section
Section Code: M333A Occurrence Status: Confident or certain


Vegetation

Vegetation Summary: Salix drummondiana is the most common tall shrub although Salix boothii can be dominant. A shorter willow, Salix farriae, can be common and subdominant in some stands. Picea engelmannii trees usually appear in the fen as scattered individuals. Carex scopulorum var. prionophylla dominates the community and may share some space with Carex utriculata. Calamagrostis canadensis is the only other species that occurs regularly, although in low abundance. Sphagnum mosses are common and can be abundant.

Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Charact-
eristic
Dominant Constant
Cover Class %
Con-
stancy
%
Salix drummondiana G2 Broad-leaved deciduous shrub Tall shrub/sapling  
 
 
Carex scopulorum var. prionophylla G2 Graminoid Herb (field)  
 
 


At-Risk Species Reported for this Association
Scientific Name
  (Common Name)
NatureServe Global Status U.S. Endangered Species Act Status
Carex scopulorum var. prionophylla
  (Saw-leaf Sedge)
G5T3?  


Environmental Setting

Wetland Indicator: Y
Environmental Summary: This wet, high-elevation shrub fen is usually located between 1220-1922 m (4000-6300 feet) elevation and is dominated by tall willows (over 2 m). It is usually found along very low- to moderately low-gradient streams or with ponds or lakes in fen shrublands. Soils are typically well-aerated, nutrient-rich sedge peat soils with a shallow water table and surface water apparent during the growing season.


Dynamic Processes


Plot Sampling & Classification Analysis

Plots stored in VegBank


Authors/Contributors
Concept Author(s): Western Ecology Group
Element Description Edition Date: 16Oct2002
Element Description Author(s): R.C. Crawford
NatureServe Conservation Status Factors Edition Date: 16Oct2002
NatureServe Conservation Status Factors Author(s): R.C. Crawford

Ecological data developed by NatureServe and its network of natural heritage programs (see Local Programs) and other contributors and cooperators (see Sources).


References
  • Bailey, R. G., P. E. Avers, T. King, and W. H. McNab, editors. 1994. Ecoregions and subregions of the United States (map). U.S. Geological Survey, Washington, DC. Scale 1:7,500,000 colored. Accompanied by a supplementary table of map unit descriptions compiled and edited by W. H. McNab and R. G. Bailey. Prepared for the USDA Forest Service.

  • IDCDC [Idaho Conservation Data Center]. 2005. Wetland and riparian plant associations in Idaho. Idaho Conservation Data Center, Idaho Department of Fish and Game, Boise. [http://fishandgame.idaho.gov/tech/CDC/ecology/wetland_riparian_assoc.cfm] (accessed 14 June 2005).

  • IDCDC [Idaho Conservation Data Center]. No date. Unpublished data on file at Idaho Conservation Data Center, Department of Fish and Game, Boise, ID.

  • Kagan, J. S., J. A. Christy, M. P. Murray, and J. A. Titus. 2004. Classification of native vegetation of Oregon. January 2004. Oregon Natural Heritage Information Center, Portland. 52 pp.

  • Kagan, Jimmy. Personal communication. Coordinator, Oregon Natural Heritage Program, Portland.

  • Kovalchik, B. L. 1993. Riparian plant associations on the national forests of eastern Washington - Draft version 1. USDA Forest Service, Colville National Forest, Colville, WA. 203 pp.

  • Kovalchik, B. L. 2001. Classification and management of aquatic, riparian and wetland sites on the national forests of eastern Washington. Part 1: The series descriptions. 429 pp. plus appendix. [http://www.reo.gov/col/wetland_classification/wetland_classification.pdf]

  • Kovalchik, Bud L. Personal communication. U.S. Forest Service riparian ecologist, retired. Colville, WA.

  • WNHP [Washington Natural Heritage Program]. 2018. Unpublished data files. Washington Natural Heritage Program, Department of Natural Resources, Olympia, WA.

  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.


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Data last updated: March 2019