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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Triodanis perfoliata
clasping bellwort, clasping Venus' lookingglass, clasping Venus' looking-glass, clasping-leaf Venus' looking-glass, common Venus' lookingglass, roundleaved triodanis
Fort Sumter National Historical Park
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Unknown

Scientific Name with Authority:		Triodanis perfoliata (L.) Nieuwl.
Park Preferred Common Name(s):
Park Synonyms:

Taxonomic Hierarchy:		Kingdom Plantae, Phylum Tracheophyta, Subphylum Spermatophytina, Order Asterales, Family Campanulaceae, Genus Triodanis, Species Triodanis perfoliata


Park Tags:
ParkTag -


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:		G5
NatureServe State Rank:		SC: SNR
Evidence:		0 Observations, 0 Vouchers, 1 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Amistad National Recreation Area	Appalachian National Scenic Trail
Assateague Island National Seashore	Big South Fork National River and Recreation Area
Blue Ridge Parkway	Bluestone National Scenic River
Cape Cod National Seashore	Cape Hatteras National Seashore
Cape Lookout National Seashore	Carl Sandburg Home National Historic Site
Catoctin Mountain Park	Chickamauga and Chattanooga National Military Park
Chickasaw National Recreation Area	Chiricahua National Monument
Colonial National Historical Park	Coronado National Memorial
Cowpens National Battlefield	Cumberland Gap National Historical Park
Cumberland Island National Seashore	Delaware Water Gap National Recreation Area
Devils Tower National Monument	Effigy Mounds National Monument
Eisenhower National Historic Site	Fire Island National Seashore
First State National Historical Park	Fort Bowie National Historic Site
Fort Caroline National Memorial	Fort Donelson National Battlefield
Fort Larned National Historic Site	Fort Matanzas National Monument
Fort Pulaski National Monument	Gateway National Recreation Area
George Washington Birthplace National Monument	George Washington Carver National Monument
Gettysburg National Military Park	Gila Cliff Dwellings National Monument
Great Falls Park	Great Smoky Mountains National Park
Gulf Islands National Seashore	Harpers Ferry National Historical Park
Home of Franklin D. Roosevelt National Historic Site	Homestead National Historical Park
Hopewell Culture National Historical Park	Hopewell Furnace National Historic Site
Indiana Dunes National Park	Jean Lafitte National Historical Park and Preserve
Kennesaw Mountain National Battlefield Park	Lincoln Boyhood National Memorial
Lyndon B. Johnson National Historical Park	Mammoth Cave National Park
Manassas National Battlefield Park	Minute Man National Historical Park
Mississippi National River and Recreation Areas	Mount Rushmore National Memorial
New River Gorge National Park and Preserve	Nez Perce National Historical Park
Obed Wild and Scenic River	Ocmulgee Mounds National Historical Park
Organ Pipe Cactus National Monument	Ozark National Scenic Riverways
Padre Island National Seashore	Petersburg National Battlefield
Prince William Forest Park	Richmond National Battlefield Park
Rock Creek Park	Rocky Mountain National Park
Russell Cave National Monument	Sagamore Hill National Historic Site
Saguaro National Park	Saint Croix National Scenic Riverway
Saratoga National Historical Park	Shenandoah National Park
Shiloh National Military Park	Sleeping Bear Dunes National Lakeshore
Stones River National Battlefield	Tallgrass Prairie National Preserve
Timucuan Ecological and Historic Preserve	Tumacacori National Historical Park
Upper Delaware Scenic and Recreational River	Valley Forge National Historical Park
Vanderbilt Mansion National Historic Site	Vicksburg National Military Park
Wilson's Creek National Battlefield	Wind Cave National Park
Wolf Trap National Park for the Performing Arts	Zion National Park


Last Modified Date:	11/14/2006

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 3/5/2026 7:11:15 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	3/5/2026 7:11:15 AM

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