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Salix exigua - Salix lucida ssp. caudata Wet Shrubland
Translated Name: Narrowleaf Willow - Greenleaf Willow Wet Shrubland
Unique Identifier: CEGL001204
Classification Approach: International Vegetation Classification (IVC)
Summary: This is a riparian community with distribution at least covering the Snake River area. It occurs on sandy bars and deltas with alluvial gravel and cobble. Schoenoplectus acutus and Schoenoplectus tabernaemontani may occur along the edge of the riverbanks. Overall cover is 80-90% willows (Salix exigua and Salix lucida ssp. caudata), 8-14% Typha latifolia, and incidental Asclepias fascicularis, Populus deltoides, and Leymus cinereus.



Classification

Classification Confidence: Low
Classification Comments: Myhre and Clements (1972) loosely describe this community using Salix lasiandra instead of Salix lucida ssp. caudata.

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 Rocky Mountain-Great Basin Lowland-Foothill Riparian Shrubland
Alliance Narrowleaf Willow - Dewystem Willow 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These data are subject to substantial ongoing revision and may be out of date for some states.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 exigua - Salix lucida ssp. caudata Equivalent Certain Kagan et al. 2004


Other Related Concepts
Related Concept Name: Salix exigua - Salix lucida ssp. lasiandra - Cornus serecia 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]

Ecological Systems Placement

Ecological Systems Placement
Ecological System Unique ID Ecological System Name
CES306.821 Rocky Mountain Lower Montane-Foothill Riparian Woodland and Shrubland


NatureServe Conservation Status
Global Status: G2 (29Mar1999)
Rounded Global Status: G2 - Imperiled
Reasons: This association may not be as rare as implied by a G2 rating, but it was certainly more widespread historically, before dams were built along the Snake River. More documentation of additional occurrences is needed before assigning G3.

Distribution
Color legend for Distribution Map
United States Distribution: CApotentially occurs, CO, OR
Global Distribution: United States

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: Confident or certain
Section Name: Northwestern Basin and Range Section
Section Code: 342B Occurrence Status: Confident or certain
Section Name: Owyhee Uplands Section
Section Code: 342C Occurrence Status: Possible
Section Name: High Lava Plains Section
Section Code: 342H Occurrence Status: Possible
Section Name: Columbia Basin Section
Section Code: 342I Occurrence Status: Confident or certain
Division Name: Temperate Steppe Regime Mountains
Province Name: Southern Rocky Mountain Steppe - Open Woodland - Coniferous Forest - Alpine Meadow Province
Province Code: M331 Occurrence Status: Confident or certain
Section Name: Southern Parks and Ranges Section
Section Code: M331F Occurrence Status: Confident or certain
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: Overall cover is 80-90% willows (Salix exigua and Salix lucida ssp. caudata), 8-14% Typha latifolia, and incidental Asclepias fascicularis, Populus deltoides, and Leymus cinereus. In addition, Schoenoplectus acutus (= Scirpus acutus) and Schoenoplectus tabernaemontani (= Scirpus validus) may occur along the edge of the riverbanks.

Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Charact-
eristic
Dominant Constant
Cover Class %
Con-
stancy
%
Salix exigua G2 Broad-leaved deciduous shrub Shrub/sapling (tall & short)  
 
 
Salix lucida ssp. caudata G2 Broad-leaved deciduous shrub Shrub/sapling (tall & short)  
 
 


Environmental Setting

Wetland Indicator: Y


Dynamic Processes


Plot Sampling & Classification Analysis

Plots stored in VegBank


Authors/Contributors
Concept Author(s): M.P. Murray
Element Description Edition Date: 26Nov1997
Element Description Author(s): M.P. Murray
NatureServe Conservation Status Factors Edition Date: 24Mar1999
NatureServe Conservation Status Factors Author(s): M.P. Murray

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.

  • Myhre, J., and E. A. Clements. 1972. A study of the flora of the islands and the shoreline of the Snake River between Grandview, Idaho, and Guffey Butte, Owyhee County, Idaho. Unpublished report prepared for Biology Department, College of Idaho, Caldwell. 18 pp.

  • Salas, D. E., J. Stevens, K. Schulz, M. Artmann, B. Friesen, S. Blauer, E. W. Schweiger, and A. Valdez. 2010b. Vegetation classification and mapping project report: Great Sand Dunes National Park and Preserve. Natural Resource Report NPS/ROMN/NRR--2010/179. National Park Service, Fort Collins, CO.

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


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