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

NPSpecies - Park Species Profile


Scleranthus annuus
German knotgrass, knawel
Cape Hatteras National Seashore
			Record Status: Approved
Occurrence:	Present
Nativeness:	Non-native
Abundance:	Unknown

Scientific Name with Authority:		Scleranthus annuus L.
Park Preferred Common Name(s):
Park Synonyms:

Taxonomic Hierarchy:		Kingdom Plantae, Phylum Tracheophyta, Subphylum Spermatophytina, Order Caryophyllales, Family Caryophyllaceae, Genus Scleranthus, Species Scleranthus annuus


Park Tags:
ParkTag -


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:		GNR
NatureServe State Rank:		NC: SNA
Evidence:		0 Observations, 2 Vouchers, 1 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Anacostia Park	Apostle Islands National Lakeshore
Assateague Island National Seashore	Blue Ridge Parkway
Cape Cod National Seashore	Chattahoochee River National Recreation Area
Cowpens National Battlefield	Cumberland Island National Seashore
Delaware Water Gap National Recreation Area	Fire Island National Seashore
Fort Pulaski National Monument	Gateway National Recreation Area
George Washington Birthplace National Monument	George Washington Memorial Parkway
Gettysburg National Military Park	Indiana Dunes National Park
Jimmy Carter National Historical Park	Minute Man National Historical Park
North Cascades National Park	Oregon Caves National Monument
Piscataway Park	Prince William Forest Park
Richmond National Battlefield Park	Rock Creek Park
Shenandoah National Park


Last Modified Date:	5/9/2007

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 10/9/2025 12:30:51 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	10/9/2025 12:30:51 PM

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