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Polygonum amphibium - (Polygonum hydropiperoides) Shoreline Wet Meadow
Translated Name: Water Knotweed - (Swamp Smartweed) Shoreline Wet Meadow
Common Name: Smartweed Pond
Unique Identifier: CEGL004699
Classification Approach: International Vegetation Classification (IVC)
Summary: This association includes vegetation of wet depressions, lakes, and ponds dominated by Polygonum amphibium and/or Polygonum hydropiperoides. Its distribution is potentially very widespread.



Classification

Classification Confidence: Low - Poorly Documented
Classification Comments: This concept was originally based on data from Oklahoma (Hoagland and Collins 1997, Hoagland 2000).

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.Nd - Eastern North American Temperate & Boreal Freshwater Marsh, Wet Meadow & Shrubland
Macrogroup Eastern North American Wet Shoreline Vegetation
Group Eastern North American Wet Shoreline Vegetation
Alliance Eastern Knotweed Shoreline Wet Meadow

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These data are subject to substantial ongoing revision and may be out of date for some states.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
Oklahoma Polygonum amphibium herbaceous association Undetermined   Hoagland 2000
Tennessee Polygonum amphibium - (Polygonum hydropiperoides) Seasonally Flooded Herbaceous Vegetation Equivalent Certain TDNH unpubl. data



Ecological Systems Placement

Ecological Systems Placement
Ecological System Unique ID Ecological System Name
CES203.558 East Gulf Coastal Plain Depression Pond
CES205.687 Eastern Great Plains Wet Meadow, Prairie and Marsh


NatureServe Conservation Status
Global Status: G4G5 (03Oct2001)
Rounded Global Status: G4 - Apparently Secure
Reasons: This is apparently a wide-ranging early-successional vegetation type.

Distribution
Color legend for Distribution Map
United States Distribution: GApotentially occurs, KY, MS, OK, TNpotentially occurs
Global Distribution: United States
Global Range: The full range of this vaguely defined element has not been determined. It was described from Oklahoma, and is presumed to occur elsewhere in the southeastern United States.

U.S. Forest Service Ecoregions
Domain Name: Humid Temperate Domain
Division Name: Hot Continental Division
Province Name: Eastern Broadleaf Forest (Oceanic) Province
Province Code: 221 Occurrence Status: Confident or certain
Section Name: Northern Cumberland Plateau Section
Section Code: 221H Occurrence Status: Confident or certain
Province Name: Eastern Broadleaf Forest (Continental) Province
Province Code: 222 Occurrence Status: Confident or certain
Section Name: Ozark Highlands Section
Section Code: 222A Occurrence Status: Possible
Section Name: Interior Low Plateau, Shawnee Hills Section
Section Code: 222D Occurrence Status: Confident or certain
Section Name: Interior Low Plateau, Highland Rim Section
Section Code: 222E Occurrence Status: Confident or certain
Division Name: Subtropical Division
Province Name: Southeastern Mixed Forest Province
Province Code: 231 Occurrence Status: Confident or certain
Section Name: Coastal Plain Middle Section
Section Code: 231B Occurrence Status: Confident or certain
Province Name: Lower Mississippi Riverine Forest Province
Province Code: 234 Occurrence Status: Confident or certain
Section Name: Mississippi Alluvial Basin Section
Section Code: 234A Occurrence Status: Confident or certain
Division Name: Prairie Division
Province Name: Prairie Parkland (Temperate) Province
Province Code: 251 Occurrence Status: Confident or certain
Section Name: Osage Plains Section
Section Code: 251E Occurrence Status: Confident or certain
Section Name: Flint Hills Section
Section Code: 251F Occurrence Status: Confident or certain
Province Name: Prairie Parkland (Subtropical) Province
Province Code: 255 Occurrence Status: Confident or certain
Section Name: Cross Timbers and Prairie Section
Section Code: 255A Occurrence Status: Confident or certain
Domain Name: Dry Domain
Division Name: Tropical/Subtropical Steppe Division
Province Name: Great Plains Steppe and Shrub Province
Province Code: 311 Occurrence Status: Confident or certain
Section Name: Redbed Plains Section
Section Code: 311A Occurrence Status: Confident or certain
Province Name: Southwest Plateau and Plains Dry Steppe and Shrub Province
Province Code: 315 Occurrence Status: Predicted or probable
Section Name: Texas High Plains Section
Section Code: 315B Occurrence Status: Predicted or probable
Section Name: Rolling Plains Section
Section Code: 315C Occurrence Status: Predicted or probable
Division Name: Temperate Steppe Division
Province Name: Great Plains-Palouse Dry Steppe Province
Province Code: 331 Occurrence Status: Confident or certain
Section Name: Southern High Plains Section
Section Code: 331B Occurrence Status: Confident or certain
Section Name: Arkansas Tablelands Section
Section Code: 331I Occurrence Status: Possible
Province Name: Great Plains Steppe Province
Province Code: 332 Occurrence Status: Confident or certain
Section Name: South-Central Great Plains Section
Section Code: 332E Occurrence Status: Confident or certain
Domain Name: Humid Temperate Domain
Division Name: Hot Continental Regime Mountains
Province Name: Ozark Broadleaf Forest - Meadow Province
Province Code: M222 Occurrence Status: Possible
Section Name: Boston Mountains Section
Section Code: M222A Occurrence Status: Possible
Division Name: Subtropical Regime Mountains
Province Name: Ouachita Mixed Forest - Meadow Province
Province Code: M231 Occurrence Status: Possible
Section Name: Ouachita Mountains Section
Section Code: M231A Occurrence Status: Possible


Vegetation

Vegetation Summary: This vegetation is apparently dominated by Polygonum amphibium and/or Polygonum hydropiperoides. More details are needed on the floristic composition of this community throughout its range.

Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Charact-
eristic
Dominant Constant
Cover Class %
Con-
stancy
%
Persicaria hydropiperoides G4 Flowering forb Herb (field)  
 
 
Polygonum amphibium G4 Flowering forb Herb (field)  
 
 


Environmental Setting

Wetland Indicator: Y
Environmental Summary: Vegetation of wet depressions, lakes, and ponds.


Dynamic Processes


Plot Sampling & Classification Analysis

Plots stored in VegBank


Authors/Contributors
Concept Author(s): K.D. Patterson
Element Description Edition Date: 26Nov1997
Element Description Author(s): K.D. Patterson
NatureServe Conservation Status Factors Edition Date: 03Oct2001
NatureServe Conservation Status Factors Author(s): M. Pyne

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


References
  • Hoagland, B. 2000. The vegetation of Oklahoma: A classification for landscape mapping and conservation planning. The Southwestern Naturalist 45(4):385-420.

  • Hoagland, B. W., and S. L. Collins. 1997. Heterogeneity in shortgrass prairie vegetation: The role of playa lakes. Journal of Vegetation Science 8:277-286.

  • Nordman, C., M. Russo, and L. Smart. 2011. Vegetation types of the Natchez Trace Parkway, based on the U.S. National Vegetation Classification. NatureServe Central Databases (International Ecological Classification Standard: Terrestrial Ecological Classifications). Arlington, VA. Data current as of 11 April 2011. 548 pp.

  • Penfound, W. T. 1953. Plant communities of Oklahoma lakes. Ecology 34:561-583.

  • Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.

  • TDNH [Tennessee Division of Natural Heritage]. No date. Unpublished data. Tennessee Division of Natural Heritage, Nashville, TN.


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