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Alnus incana / Carex (aquatilis, lenticularis, luzulina, pellita) Wet Shrubland
Translated Name: Gray Alder / (Water Sedge, Lakeshore Sedge, Woodrush Sedge, Woolly Sedge) Wet Shrubland
Unique Identifier: CEGL001144
Classification Approach: International Vegetation Classification (IVC)
Summary: This shrubland association is currently only described from Oregon but is also reported to occur in Montana, Washington, and possibly Idaho. Additional global information will be added as it becomes available. Sites were sampled in the Blue Mountains and East Cascades ecoregions at moderately low to moderately high elevations Valleys in which this association occurs are low gradient, V- or trough-shaped, narrow to wide with gentle to moderately steep sideslopes. Associated Rosgen stream types are 0.5 to 10 m wide E5 and B streams with little organic debris affecting the active stream channel. Soils comprise deep, fine-textured mineral material with seasonally high water tables that probably drop to below the Carex pellita rooting zone by the end of the growing season. Alnus incana forms a scattered to dense canopy averaging 5 m in height. Carex pellita abundance varies inversely with Alnus incana canopy cover as it is somewhat shade-intolerant. Other species commonly scattered throughout the herbaceous layer are Juncus arcticus ssp. littoralis, Carex microptera, Geum macrophyllum, and Equisetum arvense. Herbaceous species average 46 cm (ranging from 31 to 61 cm). Biomass averages 2770 lbs/acre.



Classification

Classification Confidence: Low - Poorly Documented
Classification Comments: This association is defined as a PNV vegetation type.

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 Alder Wet Shrubland

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

Similar Associations
Unique Identifier Name
CEGL001148 Alnus incana / Mesic Graminoids Wet Shrubland
CEGL002628 Alnus incana / Athyrium filix-femina 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 Alnus incana / Carex spp. Shrubland Equivalent Certain IDCDC 2005
Montana Alnus incana / Carex spp. Shrubland Equivalent Certain MTNHP 2002


Other Related Concepts
Related Concept Name: Alnus incana / Carex aquatilis
Relationship: ? - Undetermined
Reference: Crowe, E. A., and R. R. Clausnitzer. 1997. Mid-montane wetland plant associations of the Malheur, Umatilla, and Wallowa-Whitman national forests. Technical Paper R6-NR-ECOL-TP-22-97. USDA Forest Service, Pacific Northwest Region, Portland, OR.
Related Concept Name: Alnus incana / Carex deweyana
Relationship: = - Equivalent
Reference: Crowe, E. A., and R. R. Clausnitzer. 1997. Mid-montane wetland plant associations of the Malheur, Umatilla, and Wallowa-Whitman national forests. Technical Paper R6-NR-ECOL-TP-22-97. USDA Forest Service, Pacific Northwest Region, Portland, OR.
Related Concept Name: Alnus incana / Carex lenticularis var. lenticularis
Relationship: ? - Undetermined
Reference: Crowe, E. A., and R. R. Clausnitzer. 1997. Mid-montane wetland plant associations of the Malheur, Umatilla, and Wallowa-Whitman national forests. Technical Paper R6-NR-ECOL-TP-22-97. USDA Forest Service, Pacific Northwest Region, Portland, OR.
Related Concept Name: Alnus incana / Carex luzulina
Relationship: ? - Undetermined
Reference: Crowe, E. A., and R. R. Clausnitzer. 1997. Mid-montane wetland plant associations of the Malheur, Umatilla, and Wallowa-Whitman national forests. Technical Paper R6-NR-ECOL-TP-22-97. USDA Forest Service, Pacific Northwest Region, Portland, OR.
Related Concept Name: Alnus incana / Carex pellita 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
CES306.832 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: IDpotentially occurs, MT, OR, WA
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
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
Province Name: Northern Rocky Mountain Forest - Steppe - Coniferous Forest - Alpine Meadow Province
Province Code: M333 Occurrence Status: Confident or certain
Section Name: Northern Rockies Section
Section Code: M333C Occurrence Status: Confident or certain


Vegetation


Environmental Setting

Wetland Indicator: Y


Dynamic Processes


Plot Sampling & Classification Analysis

Plots stored in VegBank


Authors/Contributors
Concept Author(s): Crowe et al. (2004)
Element Description Edition Date: 15Jul2018
Element Description Author(s): Crowe et al. (2004)

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]

  • Crowe, E. A., and R. R. Clausnitzer. 1997. Mid-montane wetland plant associations of the Malheur, Umatilla, and Wallowa-Whitman national forests. Technical Paper R6-NR-ECOL-TP-22-97. USDA Forest Service, Pacific Northwest Region, Portland, OR.

  • Evenden, A. G. 1990. Ecology and distribution of riparian vegetation in the Trout Creek Mountains of southeastern Oregon. Ph.D. dissertation, Oregon State University, Corvallis. 156 pp.

  • 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).

  • MTNHP [Montana Natural Heritage Program]. 2002b. List of ecological communities for Montana. Montana Natural Heritage Program, Montana State Library, Helena, MT.

  • 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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