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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Dioscorea quaternata
fourleaf yam
Ozark National Scenic Riverways
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Uncommon

Scientific Name with Authority:		Dioscorea quaternata J.F. Gmel.
Park Preferred Common Name(s):
Park Synonyms:

Taxonomic Hierarchy:		Kingdom Plantae, Phylum Tracheophyta, Subphylum Spermatophytina, Order Dioscoreales, Family Dioscoreaceae, Genus Dioscorea, Species Dioscorea quaternata


Park Tags:
ParkTag -


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:		G5
NatureServe State Rank:		MO: SNR
Evidence:		0 Observations, 0 Vouchers, 3 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Abraham Lincoln Birthplace National Historical Park	Allegheny Portage Railroad National Historic Site
Antietam National Battlefield	Big South Fork National River and Recreation Area
Blue Ridge Parkway	Bluestone National Scenic River
Carl Sandburg Home National Historic Site	Catoctin Mountain Park
Chickamauga and Chattanooga National Military Park	Colonial National Historical Park
Cowpens National Battlefield	Cumberland Gap National Historical Park
Delaware Water Gap National Recreation Area	Fort Circle Parks
Fort Donelson National Battlefield	Fort Necessity National Battlefield
Fredericksburg and Spotsylvania County Battlefields Memorial National Military Park	Friendship Hill National Historic Site
Gauley River National Recreation Area	Gettysburg National Military Park
Guilford Courthouse National Military Park	Harpers Ferry National Historical Park
Kings Mountain National Military Park	Mammoth Cave National Park
Manassas National Battlefield Park	Monocacy National Battlefield
New River Gorge National Park and Preserve	Petersburg National Battlefield
Prince William Forest Park	Richmond National Battlefield Park
Russell Cave National Monument	Shiloh National Military Park
Wolf Trap National Park for the Performing Arts


Last Modified Date:	4/12/2005

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 10/2/2025 8:28:02 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	10/2/2025 8:28:02 AM

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