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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Polygonum pensylvanicum
Pennsylvania knotweed, Pennsylvania smartweed, pinkweed, pinweed
New River Gorge National Park and Preserve
			Record Status: Approved
Occurrence:	Present
Nativeness:	Unknown
Abundance:	Unknown

Scientific Name with Authority:		Polygonum pensylvanicum L.
Park Preferred Common Name(s):
Park Synonyms:

Taxonomic Hierarchy:		Kingdom Plantae, Phylum Tracheophyta, Subphylum Spermatophytina, Order Caryophyllales, Family Polygonaceae, Genus Persicaria, Species Polygonum pensylvanicum


Park Tags:
ParkTag -


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:
NatureServe State Rank:
Evidence:		0 Observations, 1 Vouchers, 5 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Alibates Flint Quarries National Monument	Allegheny Portage Railroad National Historic Site
Antietam National Battlefield	Apostle Islands National Lakeshore
Assateague Island National Seashore	Aztec Ruins National Monument
Bent's Old Fort National Historic Site	Big Bend National Park
Big South Fork National River and Recreation Area	Blue Ridge Parkway
Bluestone National Scenic River	Boston Harbor Islands National Recreation Area
Cape Cod National Seashore	Cape Hatteras National Seashore
Chattahoochee River National Recreation Area	Chickamauga and Chattanooga National Military Park
Colonial National Historical Park	Congaree National Park
Cumberland Gap National Historical Park	Cuyahoga Valley National Park
Delaware Water Gap National Recreation Area	Effigy Mounds National Monument
Eisenhower National Historic Site	Fort Donelson National Battlefield
Fort Union Trading Post National Historic Site	Fredericksburg and Spotsylvania County Battlefields Memorial National Military Park
Gateway National Recreation Area	George Washington Birthplace National Monument
George Washington Carver National Monument	Gettysburg National Military Park
Great Sand Dunes National Park and Preserve	Harpers Ferry National Historical Park
Herbert Hoover National Historic Site	Homestead National Historical Park
Hopewell Culture National Historical Park	Hopewell Furnace National Historic Site
Indiana Dunes National Park	Johnstown Flood National Memorial
Kenilworth Park and Aquatic Gardens	Kennesaw Mountain National Battlefield Park
Kings Mountain National Military Park	Lake Meredith National Recreation Area
Little River Canyon National Preserve	Mammoth Cave National Park
Manassas National Battlefield Park	Martin Van Buren National Historic Site
Minute Man National Historical Park	Mississippi National River and Recreation Areas
Missouri National Recreational River	Monocacy National Battlefield
Moores Creek National Battlefield	Morristown National Historical Park
Obed Wild and Scenic River	Ozark National Scenic Riverways
Petrified Forest National Park	Pictured Rocks National Lakeshore
Pipestone National Monument	Prince William Forest Park
Richmond National Battlefield Park	Russell Cave National Monument
Saint Croix National Scenic Riverway	Saint-Gaudens National Historical Park
Saratoga National Historical Park	Shiloh National Military Park
Sleeping Bear Dunes National Lakeshore	Stones River National Battlefield
Tallgrass Prairie National Preserve	Theodore Roosevelt National Park
Upper Delaware Scenic and Recreational River	Valley Forge National Historical Park
Vicksburg National Military Park	Voyageurs National Park
Wilson's Creek National Battlefield


Last Modified Date:	6/8/2020

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 12/21/2025 5:45:53 AM

NatureServe Global Rank and State Rank

NatureServe. 2017. NatureServe Web Service. Arlington, VA. U.S.A. Available http://services.natureserve.org. Accessed: 12/4/2017. Updated quarterly.

This information is provided by NatureServe (www.natureserve.org) and its network of natural heritage member programs, a leading source of information about rare and endangered species, and threatened ecosystems.


Species Profile	Page 1 of 1	12/21/2025 5:45:53 AM

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