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Salix boothii - Salix eastwoodiae / Carex nigricans Wet Shrubland
Translated Name: Booth's Willow - Mountain Willow / Black Alpine Sedge Wet Shrubland
Unique Identifier: CEGL002607
Classification Approach: International Vegetation Classification (IVC)
Summary: This high-elevation riparian shrubland association is known from the Cascade Range in Oregon. Sites are on glacial outwash floodplains near alpine-subalpine lakes. Substrate is a rocky, sand-textured soil. The vegetation is characterized by a low-shrub layer (<1 m tall) that is codominated Salix boothii and Salix eastwoodiae with Phyllodoce empetriformis and Kalmia microphylla also present. The relatively sparse herbaceous layer is dominated by Carex nigricans. Other herbaceous species include Antennaria spp., Carex scopulorum, Eleocharis quinqueflora, Juncus drummondii, Lupinus latifolius, Pedicularis groenlandica, and Triantha glutinosa.



Classification

Classification Confidence: Low
Classification Comments: This association is based on two plots sampled in the Three Sisters Wilderness Area in Oregon. More survey and classification work are needed to verify its full range and relationships with similar high-elevation Salix boothii and Salix eastwoodiae shrubland associations.

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.



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These data are subject to substantial ongoing revision and may be out of date for some states.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
Oregon Salix boothii - Salix eastwoodiae / Carex nigricans Equivalent Certain Kagan et al. 2004


Other Related Concepts
Related Concept Name: Salix eastwoodiae - Salix myrtillifolia / Carex nigricans Association
Relationship: = - Equivalent
Reference: Crowe, E. A., B. L. Kovalchik, and M. J. Kerr. 2004. Riparian and wetland vegetation of central and eastern Oregon. Oregon Natural Heritage Information Center, Institute for Natural Resources, Oregon State University, Portland. 473 pp. [http://oregonstate.edu/ornhic/ publications.html]
Related Concept Name: Eastwood willow - Booth willow / black sedge association
Relationship: = - Equivalent
Reference: Kovalchik, B. L. 1987. Riparian zone associations - Deschutes, Ochoco, Fremont, and Winema national forests. Technical Paper 279-87. USDA Forest Service, Pacific Northwest Region, Portland, OR. 171 pp.

Ecological Systems Placement

Ecological Systems Placement
Ecological System Unique ID Ecological System Name
CES204.866 North Pacific Montane Riparian Woodland and Shrubland
CES306.832 Rocky Mountain Subalpine-Montane Riparian Shrubland


NatureServe Conservation Status
Global Status: G3 (01Feb1996)
Rounded Global Status: G3 - Vulnerable

Distribution
Color legend for Distribution Map
United States Distribution: NVpotentially occurs, OR
Global Distribution: United States
Global Range: This riparian willow shrubland association is known from the Three Sisters Wilderness Area in Deschutes National Forest in Oregon but may have a wider distributions within the Cascade Range.

U.S. Forest Service Ecoregions
Domain Name: Humid Temperate Domain
Division Name: Marine Regime Mountains
Province Name: Cascade Mixed Forest - Coniferous Forest - Alpine Meadow Province
Province Code: M242 Occurrence Status: Confident or certain
Section Name: Eastern Cascades Section
Section Code: M242C Occurrence Status: Confident or certain
Domain Name: Dry Domain
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: Blue Mountains Section
Section Code: M332G Occurrence Status: Confident or certain


Vegetation

Vegetation Summary: The vegetation is characterized by a low-shrub layer (<1 m tall) that is codominated Salix boothii and Salix eastwoodiae with Phyllodoce empetriformis and Kalmia microphylla also present. The relatively sparse herbaceous layer is dominated by Carex nigricans. Other herbaceous species include Antennaria spp., Carex scopulorum, Eleocharis quinqueflora (= Eleocharis pauciflora), Juncus drummondii, Lupinus latifolius, Pedicularis groenlandica, and Triantha glutinosa (= Tofieldia glutinosa).

Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Charact-
eristic
Dominant Constant
Cover Class %
Con-
stancy
%
Salix boothii G3 Broad-leaved deciduous shrub Short shrub/sapling  
 
 
Salix eastwoodiae G3 Broad-leaved deciduous shrub Short shrub/sapling  
 
 
Carex nigricans G3 Graminoid Herb (field)  
 
 


Environmental Setting

Wetland Indicator: Y
Environmental Summary: This high-elevation riparian shrubland association is known from the Cascade Range in Oregon. Sites are on glacial outwash floodplains near alpine-subalpine lakes. Substrate is a rocky, sand-textured soil.


Dynamic Processes


Plot Sampling & Classification Analysis

Plots stored in VegBank


Authors/Contributors
Concept Author(s): Western Ecology Group
Element Description Edition Date: 01Sep2004
Element Description Author(s): K.A. Schulz

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


References
  • Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.

  • Crowe, E. A., B. L. Kovalchik, and M. J. Kerr. 2004. Riparian and wetland vegetation of central and eastern Oregon. Oregon Natural Heritage Information Center, Institute for Natural Resources, Oregon State University, Portland. 473 pp. [http://oregonstate.edu/ornhic/ publications.html]

  • 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.

  • Kovalchik, B. L. 1987. Riparian zone associations - Deschutes, Ochoco, Fremont, and Winema national forests. Technical Paper 279-87. USDA Forest Service, Pacific Northwest Region, Portland, OR. 171 pp.

  • Peterson, E. B. 2008. International Vegetation Classification alliances and associations occurring in Nevada with proposed additions. Nevada Natural Heritage Program, Carson City, NV. 348 pp.

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


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