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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Tridens flavus
purpletop
Assateague Island National Seashore
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Uncommon

Scientific Name with Authority:		Tridens flavus (L.) Hitchc.
Park Preferred Common Name(s):		purpletop
Park Synonyms:		Triodia flava

Taxonomic Hierarchy:		Kingdom Plantae, Phylum Tracheophyta, Subphylum Spermatophytina, Order Poales, Family Poaceae, Genus Tridens, Species Tridens flavus


Park Tags:
ParkTag -


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:		G5
NatureServe State Rank:		MD: SNR; VA: SNR
Evidence:		0 Observations, 3 Vouchers, 3 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 Cypress National Preserve
Big South Fork National River and Recreation Area	Blue Ridge Parkway
Camp Nelson National Monument	Cape Hatteras National Seashore
Cape Lookout National Seashore	Carl Sandburg Home National Historic Site
Catoctin Mountain Park	Chattahoochee River National Recreation Area
Chickamauga and Chattanooga National Military Park	Chickasaw National Recreation Area
Colonial National Historical Park	Cowpens National Battlefield
Cumberland Gap National Historical Park	Cuyahoga Valley National Park
Delaware Water Gap National Recreation Area	Eisenhower National Historic Site
Fire Island National Seashore	First State National Historical Park
Fort Donelson National Battlefield	Fort Necessity National Battlefield
Fredericksburg and Spotsylvania County Battlefields Memorial National Military Park	Gateway National Recreation Area
George Washington Birthplace National Monument	George Washington Carver National Monument
George Washington Memorial Parkway	Gettysburg National Military Park
Great Falls Park	Great Smoky Mountains National Park
Guilford Courthouse National Military Park	Gulf Islands National Seashore
Home of Franklin D. Roosevelt National Historic Site	Homestead National Historical Park
Hopewell Culture National Historical Park	Hopewell Furnace National Historic Site
Horseshoe Bend National Military Park	Indiana Dunes National Park
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	Lyndon B. Johnson National Historical Park
Manassas National Battlefield Park	Mill Springs Battlefield National Monument
Missouri National Recreational River	Monocacy National Battlefield
Natchez Trace Parkway	Ninety Six National Historic Site
Obed Wild and Scenic River	Ocmulgee Mounds National Historical Park
Oxon Run National Parkway	Ozark National Scenic Riverways
Petersburg National Battlefield	Pipestone National Monument
Prince William Forest Park	Richmond National Battlefield Park
Rock Creek Park	Russell Cave National Monument
Sagamore Hill National Historic Site	San Antonio Missions National Historical Park
Shenandoah National Park	Shiloh National Military Park
Stones River National Battlefield	Tallgrass Prairie National Preserve
Theodore Roosevelt Island National Memorial	Thomas Stone National Historic Site
Valley Forge National Historical Park	Vanderbilt Mansion National Historic Site
Vicksburg National Military Park	Washita Battlefield National Historic Site
Wilson's Creek National Battlefield


Last Modified Date:	12/16/2004

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 10/1/2025 5:39:38 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 5:39:38 PM

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