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Polygonum persicaria L.
spotted ladysthumb

       
Symbol:    
Group:    
Family:    
Duration:    
Growth Habit:    
Native Status:  
  
  
  
  
  



Click on the image below to enlarge it and download a high-resolution JPEG file.
Photo of Polygonum persicaria L.
Persicaria maculosa

©Patrick J. Alexander. Provided by Patrick J. Alexander. Usage Requirements. Any use of copyrighted images requires notification of the copyright holder.
 
More Information:
 

Images:
Polygonum persicaria L.

Click on a thumbnail to view an image, or see all the Polygonum thumbnails at the PLANTS Gallery
View a larger version of this image and Profile page for Polygonum persicaria L. View a larger version of this image and Profile page for Polygonum persicaria L. View a larger version of this image and Profile page for Polygonum persicaria L. View a larger version of this image and Profile page for Polygonum persicaria L. View a larger version of this image and Profile page for Polygonum persicaria L.
 

Synonyms:
Polygonum persicaria L.

  PEMA17 Persicaria maculata (Raf.) Gray
  PEMA24 Persicaria maculosa Gray
  PEPE18 Persicaria persicaria (L.) Small
  PERU8 Persicaria ruderalis (Salisb.) C.F. Reed
  PERUV Persicaria ruderalis (Salisb.) C.F. Reed var. vulgaris (Webb & Moq.) C.F. Reed
  PEVU Persicaria vulgaris Webb & Moq.
  PODU3 Polygonum dubium Stein
  POFU Polygonum fusiforme Greene
  POMI11 Polygonum minus auct. non Huds.
  POMIS Polygonum minus Huds. var. subcontinuum (Meisn.) Fernald
  POPEA2 Polygonum persicaria L. var. angustifolium Beckh.
  POPER2 Polygonum persicaria L. var. ruderale (Salisb.) Meisn.
  POPU11 Polygonum puritanorum Fernald
 

Distribution:
Polygonum persicaria L.

View Native Status
Distribution Map Legend

See U.S. county distributions (when available) by clicking on the map or the linked states below:

USA (AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, 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, ON, PE, QC, SK, YT), DEN (GL), FRA (SPM)
 

Related Taxa:
Polygonum persicaria L.

View 33 genera in Polygonaceae, 80 species in Polygonum
 

Classification:
Polygonum persicaria L.

Click on a scientific name below to expand it in the PLANTS Classification Report.
   
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Caryophyllidae
Order Polygonales
Family Polygonaceae – Buckwheat family
Genus Polygonum L. – knotweed
Species Polygonum persicaria L. – spotted ladysthumb
 

Threatened and Endangered Information:
Polygonum persicaria L.

The synonyms italicized and indented below are 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 protected plant list for that location.

Massachusetts:
Polygonum puritanorum
pondshore knotweed              Special Concern
 

U.S. Weed Information:
Polygonum persicaria L.

lady's thumb
ladysthumb smartweed
smartweed

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.

SEEPPC        Southeast Exotic Pest Plant Council. 1996. Invasive exotic pest plants in Tennessee (19 October 1999). Research Committee of the Tennessee Exotic Pest Plant Council. Tennessee.
SWSS        Southern Weed Science Society. 1998. Weeds of the United States and Canada. CD-ROM. Southern Weed Science Society. Champaign, Illinois.
WSWS        Whitson, T.D. (ed.) et al. 1996. Weeds of the West. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming. Laramie, Wyoming. 630pp.
 

Introduced Information:
Polygonum persicaria L.

This plant is introduced to some part of the PLANTS Floristic Area, though it may be native in other parts. Click on link below for a partial or complete list of PFA introduced plants.

Scientific Name= A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | all
Common Name= A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | all
 

Wetland Indicator Status:
Polygonum persicaria 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
FAC,OBL FACW FACW FACW FACW OBL FACW+ FACW+ FACW FACW FACW FAC NO NO
Interpreting Wetland Indicator Status
 

Wildlife Habitat Values:
Polygonum persicaria 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
Martin     Minor   Low   Low  
Wildlife Habitat Values

 

Martin, A.C., H.S. Zim, and A.L. Nelson. 1951. American wildlife and plants: A guide to wildlife food habits. Dover Publications, New York.

 

More Accounts and Images:
Polygonum persicaria L.

View photographs from CalPhotos.

View species account and distribution map from Flora of North America (FNA).

View species account and distribution from USF Atlas of Florida Vascular Plants.

View species account from ARS Germplasm Resources Information Network (GRIN).

View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 20915.

View species account and distribution map from Jepson Interchange (University of California - Berkeley).

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.

 

Related Web Sites:
Polygonum persicaria L.

British Columbia Ag. & Food, Crop Protection Program

Manitoba Agriculture - Weeds in Crop Production: abstract & images

 
 
Time Generated: 09/25/2008 05:08 AM MDT