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Park			Taxon Code
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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Polygonum caespitosum
bristled knotweed, bunchy knotweed, oriental lady's thumb, oriental ladysthumb
Valley Forge National Historical Park
			Record Status: Approved
Occurrence:	Present
Nativeness:	Unknown
Abundance:	Unknown

Scientific Name with Authority:		Polygonum caespitosum Blume
Park Preferred Common Name(s):
Park Synonyms:

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


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, 4 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Abraham Lincoln Birthplace National Historical Park	Antietam National Battlefield
Appalachian National Scenic Trail	Big South Fork National River and Recreation Area
Blue Ridge Parkway	Bluestone National Scenic River
Carl Sandburg Home National Historic Site	Chickamauga and Chattanooga National Military Park
Cowpens National Battlefield	Cuyahoga Valley National Park
Delaware Water Gap National Recreation Area	Effigy Mounds National Monument
Fort Necessity National Battlefield	Friendship Hill National Historic Site
Hopewell Culture National Historical Park	Hopewell Furnace National Historic Site
Indiana Dunes National Park	Lincoln Boyhood National Memorial
Martin Van Buren National Historic Site	Minute Man National Historical Park
Monocacy National Battlefield	New River Gorge National Park and Preserve
Prince William Forest Park	Theodore Roosevelt Island National Memorial
Vanderbilt Mansion National Historic Site	Wolf Trap National Park for the Performing Arts


Last Modified Date:	8/1/2007

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 10/1/2025 3:25:32 PM

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	10/1/2025 3:25:32 PM

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