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Salix lucida ssp. lasiandra / Salix fluviatilis Swamp Woodland
Translated Name: Pacific Willow / River Willow Swamp Woodland
Unique Identifier: CEGL000949
Classification Approach: International Vegetation Classification (IVC)
Summary: This community type occurs along the banks of main channels in the overflow plain and gorge segments of the Columbia River of Washington, especially above Vancouver. It occurs on sand and cobble beaches above the tidal zone. The community type is sometimes subject to drought and high temperatures in summer. It is scoured by winter high water and tolerant of flooding caused by releases from Bonneville Dam. This community type is codominated by Salix fluviatilis and Salix lucida ssp. lasiandra. The abundance of other species is low, and drier portions of stands are subject to invasion by Phalaris arundinacea. Additional taxa include Carex feta and Carex vulpinoidea. This community type has invaded areas formerly scoured by annual winter and spring floods, and forms dense stands on former sand flats.



Classification

Classification Confidence: Low - Poorly Documented
Classification Comments: Christy (1993) listed two references for a Salix fluviatilis - Salix lasiandra community from the Willamette Valley, Oregon.

Vegetation Hierarchy
Class 1 - Forest & Woodland
Subclass 1.B - Temperate & Boreal Forest & Woodland
Formation 1.B.3 - Temperate Flooded & Swamp Forest
Division 1.B.3.Ng - Vancouverian Flooded & Swamp Forest
Macrogroup Vancouverian Flooded & Swamp Forest
Group North-Central Pacific Lowland Riparian Forest
Alliance Shining Willow Scrub Swamp

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These data are subject to substantial ongoing revision and may be out of date for some states.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 lucida ssp. lasiandra / Salix x fluviatilis Equivalent Certain Kagan et al. 2004


Other Related Concepts
Related Concept Name: Salix fluviatilis - Salix lasiandra community type
Relationship: = - Equivalent
Reference: Kunze, L. M. 1994. Preliminary classification of native, low elevation, freshwater wetland vegetation in western Washington. Washington State Department of Natural Resources, Natural Heritage Program. 120 pp.

Ecological Systems Placement

Ecological Systems Placement
Ecological System Unique ID Ecological System Name
CES204.869 North Pacific Lowland Riparian Forest and Shrubland


NatureServe Conservation Status
Global Status: G3Q (01Feb1996)
Rounded Global Status: G3 - Vulnerable

Distribution
Color legend for Distribution Map
United States Distribution: OR, WA
Global Distribution: United States

U.S. Forest Service Ecoregions
Domain Name: Humid Temperate Domain
Division Name: Marine Division
Province Name: Pacific Lowland Mixed Forest Province
Province Code: 242 Occurrence Status: Confident or certain
Section Name: Willamette Valley and Puget Trough Section
Section Code: 242A Occurrence Status: Confident or certain
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: Western Cascades Section
Section Code: M242B 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: Possible
Section Name: Blue Mountains Section
Section Code: M332G Occurrence Status: Possible


Vegetation


Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Charact-
eristic
Dominant Constant
Cover Class %
Con-
stancy
%
Salix lucida ssp. lasiandra G3 Broad-leaved deciduous tree Tree canopy  
 
 
Salix fluviatilis G3 Broad-leaved deciduous shrub Shrub/sapling (tall & short)  
 
 
Phalaris arundinacea G3 Graminoid Herb (field)    
 
 


Environmental Setting

Wetland Indicator: Y


Dynamic Processes


Plot Sampling & Classification Analysis

Plots stored in VegBank


Authors/Contributors
Concept Author(s): L.M. Kunze (1994)
Element Description Edition Date: 04Jan2016
Element Description Author(s): L.M. Kunze (1994)

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.

  • Christy, J. A. 1993. Classification and catalog of native wetland plant communities in Oregon. Oregon Natural Heritage Program, Portland. 63 pp.

  • Christy, J. A., and J. A. Putera. 1993. Lower Columbia River Natural Area Inventory, 1992. Oregon Natural Heritage Program, Portland. 75 pp.

  • Copass, C., and T. Ramm-Granberg. 2016b. Vancouver National Historic Reserve vegetation inventory and mapping project. Natural Resource Report NPS/NCCN/NRR--2016/1128. National Park Service, Fort Collins, CO. 90 pp.

  • Hinschberger, M. S. 1978. Occurrence and relative abundance of small mammals associated with riparian and upland habitats along the Columbia River. Unpublished thesis, Oregon State University, Corvallis. 78 pp.

  • 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.

  • Kunze, L. M. 1994. Preliminary classification of native, low elevation, freshwater wetland vegetation in western Washington. Washington State Department of Natural Resources, Natural Heritage Program. 120 pp.

  • Marshall, J. 1985. Value assessment of Jackson-Frazier wetland, Benton County, Oregon: A case study. M.S. thesis, Oregon State University, Corvallis. 147 pp.

  • 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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