PLANTS Profile for Polygonum pensylvanicum (Pennsylvania smartweed)

Name Search
name search type enter a search name
	State Search
	Advanced Search
	Search Help


	Alternative Crops
	Characteristics
	Classification
	Culturally Significant
	Distribution Update
	Fact Sheets & Plant Guides
	Invasive and Noxious Weeds
	Plant Materials Publications
	Threatened & Endangered
	Wetland Indicator Status



	40,000+ Plant Images
	Submit Your Digital Images



	Complete PLANTS Checklist
	State PLANTS Checklist
	Advanced Search Download
	Symbols for Unknown Plants
	NRCS State GSAT Lists
	NRCS State Plants Lists
	PLANTS Posters



	Crop Nutrient Tool
	Ecological Site Information System
	Plant Materials Web Site
	Other NRCS Tech Resources
	VegSpec



	PLANTS Links

Printer-Friendly / Plug-Ins

PLANTS Profile

Polygonum pensylvanicum L.
Pennsylvania smartweed

Symbol:

POPE2

Group:

Dicot

Family:

Polygonaceae

Duration:

Annual

Growth Habit:

Forb/herb

Native Status:

L48		N
AK		N
CAN		N

Click on the image below to enlarge it and download a high-resolution JPEG file.

Robert H. Mohlenbrock. 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.

More Information:

Images:
Polygonum pensylvanicum L.

Click on a thumbnail to view an image, or see all the Polygonum thumbnails at the PLANTS Gallery

Synonyms:
Polygonum pensylvanicum L.

	PEBI4	Persicaria bicornis (Raf.) Nieuwl.
	PELO7	Persicaria longistyla (Small) Small
	PEMI9	Persicaria mississippiensis (Stanford) Small
	PEPE19	Persicaria pensylvanica (L.) Small
	PEPED	Persicaria pensylvanica (L.) Small var. dura (Stanford) C.F. Reed
	POBI11	Polygonum bicorne Raf.
	POLO13	Polygonum longistylum Small
	POLOO	Polygonum longistylum Small var. omissum (Greene) Stanford
	POME6	Polygonum mexicanum auct. non Small
	POMI10	Polygonum mississippiense Stanford
	POMII	Polygonum mississippiense Stanford var. interius Stanford
	POPED	Polygonum pensylvanicum L. var. durum Stanford
	POPEE	Polygonum pensylvanicum L. var. eglandulosum J.C. Myers
	POPEG	Polygonum pensylvanicum L. var. genuinum Fernald
	POPEL2	Polygonum pensylvanicum L. var. laevigatum Fernald
	POPER3	Polygonum pensylvanicum L. var. rosiflorum J.B.S. Norton

Distribution:
Polygonum pensylvanicum L.


View Native Status

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, 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, VA, VT, WI, WV, WY), CAN (MB, NB, NF, NS, ON, QC)

Related Taxa:
Polygonum pensylvanicum L.

View 33 genera in Polygonaceae, 80 species in Polygonum

Classification:
Polygonum pensylvanicum 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 pensylvanicum L. – Pennsylvania smartweed

U.S. Weed Information:
Polygonum pensylvanicum L.

Pennsylvania knotweed
Pennsylvania smartweed
pinweed

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.

KY		Haragan, P.D. 1991. Weeds of Kentucky and adjacent states: a field guide. The University Press of Kentucky. Lexington, Kentucky. 278pp.
N'EAST		Uva, R.H., J.C. Neal, & J.M. DiTomaso. 1997. Weeds of the Northeast. Cornell University Press. Ithaca, New York. 397pp.
NE&GP		Stubbendieck, J., G.Y. Friisoe, & M.R. Bolick. 1994. Weeds of Nebraska and the Great Plains. Nebraska Department of Agriculture, Bureau of Plant Industry. Lincoln, Nebraska. 589pp.
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 pensylvanicum 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

FACW-,OBL

FACW

FACW+

FACW

FACW+

FACW-

OBL

FACW

OBL

FACW

Interpreting Wetland Indicator Status

Wildlife Habitat Values:
Polygonum pensylvanicum 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
Everitt	Low						Low

Wildlife Habitat Values

Everitt, J.H., D.L. Drawe, and R.I. Lonard. 1999. Field guide to the broad leaved herbaceous plants of South Texas used by livestock and wildlife. Texas Tech University Press, Lubbock.

More Accounts and Images:
Polygonum pensylvanicum 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 20861.

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 and photographs from University of Wisconsin - Stevens Point Freckmann Herbarium.

Related Web Sites:
Polygonum pensylvanicum L.

Virginia Tech: abstract & image

Time Generated: 09/19/2008 10:45 PM MDT