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

NPSpecies - Park Species Profile


Cystopteris protrusa
Bladder Fern
Valley Forge National Historical Park
			Record Status: Approved
Occurrence:	Present
Nativeness:	Unknown
Abundance:	Unknown

Scientific Name with Authority:		Cystopteris protrusa (Weath.) Blasdell
Park Preferred Common Name(s):		Bladder Fern
Park Synonyms:

Taxonomic Hierarchy:		Kingdom Plantae, Phylum Tracheophyta, Subphylum Polypodiophytina, Subclass Polypodiidae, Order Polypodiales, Suborder Aspleniineae, Family Cystopteridaceae, Genus Cystopteris, Species Cystopteris protrusa


Park Tags:
ParkTag -


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


Other Parks Where Species is Listed:
Abraham Lincoln Birthplace National Historical Park	Antietam National Battlefield
Blue Ridge Parkway	Bluestone National Scenic River
Buffalo National River	Catoctin Mountain Park
Chesapeake and Ohio Canal National Historical Park	Cumberland Gap National Historical Park
Cuyahoga Valley National Park	Delaware Water Gap National Recreation Area
Fort Donelson National Battlefield	Fort Washington Park
Friendship Hill National Historic Site	George Washington Memorial Parkway
Great Falls Park	Great Smoky Mountains National Park
Hot Springs National Park	Indiana Dunes National Park
Mammoth Cave National Park	Manassas National Battlefield Park
Natchez Trace Parkway	New River Gorge National Park and Preserve
Obed Wild and Scenic River	Ozark National Scenic Riverways
Piscataway Park	Prince William Forest Park
Rock Creek Park	Russell Cave National Monument
Shenandoah National Park	Shiloh National Military Park
Thomas Stone National Historic Site	Vicksburg National Military Park


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 7:00:49 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	10/1/2025 7:00:49 AM

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