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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Ptilimnium capillaceum
herbwilliam, threadleaf mockbishopweed
Cape Hatteras National Seashore
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Unknown

Scientific Name with Authority:		Ptilimnium capillaceum (Michx.) Raf.
Park Preferred Common Name(s):
Park Synonyms:

Taxonomic Hierarchy:		Kingdom Plantae, Phylum Tracheophyta, Subphylum Spermatophytina, Order Apiales, Family Apiaceae, Genus Ptilimnium, Species Ptilimnium capillaceum


Park Tags:
ParkTag -


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:		G5
NatureServe State Rank:		NC: S5
Evidence:		0 Observations, 15 Vouchers, 5 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Arkansas Post National Memorial	Assateague Island National Seashore
Big Cypress National Preserve	Big Thicket National Preserve
Canaveral National Seashore	Cape Cod National Seashore
Cape Lookout National Seashore	Castillo De San Marcos National Monument
Chattahoochee River National Recreation Area	Chickasaw National Recreation Area
Colonial National Historical Park	Congaree National Park
Cumberland Island National Seashore	DeSoto National Memorial
Everglades National Park	Fire Island National Seashore
Fort Frederica National Monument	Fort Matanzas National Monument
Fort Sumter National Historical Park	Gateway National Recreation Area
George Washington Birthplace National Monument	Gulf Islands National Seashore
Jean Lafitte National Historical Park and Preserve	Jimmy Carter National Historical Park
Moores Creek National Battlefield	Natchez Trace Parkway
Ocmulgee Mounds National Historical Park


Last Modified Date:	5/4/2007

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 11/5/2025 1:09:32 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	11/5/2025 1:09:32 PM

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