Polygonum amphibium L.
water knotweed
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JPEG file.
Ray Schulenberg. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species . Midwest National Technical Center, Lincoln. Courtesy of USDA NRCS Wetland Science Institute . Usage Requirements .
Images:
Polygonum amphibium L.
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see all the Polygonum thumbnails at the PLANTS Gallery
Distribution:
Polygonum amphibium L.
See U.S. county distributions (when available) by clicking on the map or the linked states below:
USA (AK , AR , AZ , CA , CO , CT , DC , DE , IA , ID , IL , IN , KS , KY , LA , MA , MD, ME , MI , MN , MO , MS , MT , NC , ND , NE , NH , NJ , NM , NV , NY , OH , OK , OR , PA , RI , SC , SD , TN , TX , UT , VA , VT , WA , WI , WV , WY ), CAN (AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), FRA (SPM)
Related Taxa:
Polygonum amphibium L.
View
33 genera in Polygonaceae ,
80 species in Polygonum
or click below on a thumbnail map or name for species profiles.
Native
Introduced
Classification:
Polygonum amphibium L.
Click on a scientific name below to expand it in the PLANTS
Classification Report.
Noxious Weed Information:
Polygonum amphibium L.
The related entity italicized and indented above is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place
name to get a complete noxious weed list for that location,
or click here for a composite list of all
Federal and State Noxious Weeds .
U.S. Weed Information:
Polygonum amphibium L.
water knotweed
This plant can be weedy or invasive according to the authoritative sources noted below. This plant
may be known by one or more common names in different
places, and some are listed above. Click on an acronym
to view each weed list, or click here for a
composite list of Weeds of the U.S.
SWSS
Southern Weed Science Society.
1998.
Weeds of the United States and Canada. CD-ROM .
Southern Weed Science Society.
Champaign, Illinois.
Wetland Indicator Status:
Polygonum amphibium L.
Nat. Ind.
Reg. 1
Reg. 2
Reg. 3
Reg. 4
Reg. 5
Reg. 6
Reg. 7
Reg. 8
Reg. 9
Reg. 0
Reg. A
Reg. C
Reg. H
OBL
OBL
OBL
OBL
OBL
OBL
OBL
OBL
OBL
OBL
OBL
OBL
NO
NO
Interpreting Wetland Indicator Status
Wildlife Habitat Values:
Polygonum amphibium L.
Large Mammals
Small Mammals
Water Birds
Terrestrial Birds
Source
Large Mammals Food
Large Mammals Cover
Small Mammals Food
Small Mammals Cover
Water Birds Food
Water Birds Cover
Terrestrial Birds Food
Terrestrial Birds Cover
Quinlan
Low
Low
Wildlife Habitat Values
Wildlife
Habitat Values
Quinlan, S.E., and S. Cuccarese. 2004. Native Alaskan and exotic plants used by wildlife (http://www.wildlife.alaska.gov/index.cfm?adfg=birds.plants , 4 April 2005). Alaska Department of Fish and Game, Anchorage.
More Accounts and Images:
Polygonum amphibium L.
View photographs from CalPhotos.
View species account from ARS Germplasm Resources Information Network (GRIN).
View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 20865.
View species account and distribution map from Jepson Interchange (University of California - Berkeley).
View species account and photographs from Lady Bird Johnson Wildflower Center Native Plant Information Network (NPIN).
View species account from Native American Ethnobotany (University of Michigan - Dearborn).
View photographs and distribution from University of Tennessee Herbarium.
View species account, photographs, and distribution from University of Washington Burke Museum.
View species account and photographs from University of Wisconsin - Stevens Point Freckmann Herbarium.