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Acer circinatum / Athyrium filix-femina - Tolmiea menziesii Shrub Swamp
Translated Name: Vine Maple / Common Ladyfern - Piggyback Plant Shrub Swamp
Unique Identifier: CEGL003291
Classification Approach: International Vegetation Classification (IVC)
Summary: This association occurs in the Cascade Range and Olympic Mountains at low to middle elevations, typically on steep slopes, although it can occur on gentle slopes or flat sites. Sites include moist talus, lower ends of avalanche chutes, and streambanks on smaller streams. Exposed rock is uncommon. A well-developed tall-shrub layer is dominated by Acer circinatum. Shorter shrubs, including Rubus spectabilis, Oplopanax horridus, and Sambucus racemosa, are often present in sparse to dense amounts. The well-developed herbaceous layer is characterized by the presence to prominence of Athyrium filix-femina or Tolmiea menziesii. Other common herbaceous species include Claytonia sibirica, Polystichum munitum, Maianthemum stellatum, Galium triflorum, and Stachys chamissonis var. cooleyae.



Classification

Classification Confidence: Low - Poorly Documented

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 Vancouverian Lowland Marsh, Wet Meadow & Shrubland
Group Vancouverian Wet Shrubland
Alliance Pacific Green Alder - Vine Maple Shrub 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These data are subject to substantial ongoing revision and may be out of date for some states.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 Acer circinatum / Athyrium filix-femina - Tolmiea menziesii Equivalent Certain Kagan et al. 2004


Other Related Concepts
Related Concept Name: Acer circinatum / Stachys cooleyae Association
Relationship: = - Equivalent
Reference: Diaz, N. M., and T. K. Mellen. 1996. Riparian ecological types, Gifford Pinchot and Mt. Hood national forests, and Columbia River Gorge National Scenic Area. Technical Report R6-NR-TP-10-96. USDA Forest Service, Pacific Northwest Region, Portland, OR. 203 pp. plus appendices.
Related Concept Name: Acer circinatum/Athyrium filix-femina-Tolmiea menziesii Shrubland
Relationship: = - Equivalent
Reference: Crawford, R. C., C. B. Chappell, C. C. Thompson, and F. J. Rocchio. 2009. Vegetation classification of Mount Rainier, North Cascades, and Olympic national parks. Plant association descriptions and identification keys: Appendices A-G. Natural Resource Technical Report NPS/NCCN/NRTR--2009/D-586. National Park Service, Fort Collins, CO. 586 pp.
Related Concept Name: Acer circinatum/Corydalis scouleri Community Type
Relationship: ? - Undetermined
Reference: Mycek, L. 1994. A classification of riparian plant communities in three geomorphological provinces of the Cascade Mountains in western Washington State. M.S. thesis, University of Washington, Seattle. 122 pp.
Related Concept Name: Acer circinatum/Oemleria cerasiformis/Athyrium filix-femina Community Type
Relationship: ? - Undetermined
Reference: Mycek, L. 1994. A classification of riparian plant communities in three geomorphological provinces of the Cascade Mountains in western Washington State. M.S. thesis, University of Washington, Seattle. 122 pp.
Related Concept Name: Acer circinatum/Oplopanax horridum-Rubus spectabilis Association
Relationship: ? - Undetermined
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]
Related Concept Name: Acer circinatum/Forb association
Relationship: ? - Undetermined
Reference: Henderson, J. A., and D. Peter. 1982. Preliminary plant associations and habitat types of the Snoqualmie and adjacent Skykomish River drainages, Mt. Baker-Snoqualmie National Forest. Unpublished report prepared for USDA Forest Service, Pacific Northwest Region. 87 pp.

Ecological Systems Placement

Ecological Systems Placement
Ecological System Unique ID Ecological System Name
CES204.087 North Pacific Montane Shrubland
CES204.869 North Pacific Lowland Riparian Forest and Shrubland


NatureServe Conservation Status
Global Status: G5 (28Oct2002)
Rounded Global Status: G5 - Secure

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


Vegetation


Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Charact-
eristic
Dominant Constant
Cover Class %
Con-
stancy
%
Acer circinatum G5 Broad-leaved deciduous shrub Tall shrub/sapling  
 
 
Tolmiea menziesii G5 Flowering forb Herb (field)  
 
 
Athyrium filix-femina G5 Fern (Spore-bearing forb) Herb (field)  
 
 


Environmental Setting

Wetland Indicator: Y


Dynamic Processes


Plot Sampling & Classification Analysis

Plots stored in VegBank


Authors/Contributors
Concept Author(s): Crawford et al. (2009)
Element Description Edition Date: 04Jan2016
Element Description Author(s): Crawford et al. (2009)

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


References
  • Crawford, R. C., C. B. Chappell, C. C. Thompson, and F. J. Rocchio. 2009. Vegetation classification of Mount Rainier, North Cascades, and Olympic national parks. Plant association descriptions and identification keys: Appendices A-G. Natural Resource Technical Report NPS/NCCN/NRTR--2009/D-586. National Park Service, Fort Collins, CO. 586 pp.

  • Diaz, N. M., and T. K. Mellen. 1996. Riparian ecological types, Gifford Pinchot and Mt. Hood national forests, and Columbia River Gorge National Scenic Area. Technical Report R6-NR-TP-10-96. USDA Forest Service, Pacific Northwest Region, Portland, OR. 203 pp. plus appendices.

  • Henderson, J. A., and D. Peter. 1982. Preliminary plant associations and habitat types of the Snoqualmie and adjacent Skykomish River drainages, Mt. Baker-Snoqualmie National Forest. Unpublished report prepared for USDA Forest Service, Pacific Northwest Region. 87 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.

  • 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]

  • Mycek, L. 1994. A classification of riparian plant communities in three geomorphological provinces of the Cascade Mountains in western Washington State. M.S. thesis, University of Washington, Seattle. 122 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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