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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Dioscorea polystachya
Chinese yam
Cumberland Gap National Historical Park
			Record Status: Approved
Occurrence:	Present
Nativeness:	Non-native (Invasive)
Abundance:	Unknown

Scientific Name with Authority:		Dioscorea polystachya Turcz.
Park Preferred Common Name(s):
Park Synonyms:		Dioscorea batatas, Dioscorea oppositifolia

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


Management Tags:
Management Priority


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:		GNR
NatureServe State Rank:		KY: SNA; TN: SNA; VA: SNA
Evidence:		1 Observations, 0 Vouchers, 5 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Big South Fork National River and Recreation Area	Blue Ridge Parkway
Catoctin Mountain Park	Chesapeake and Ohio Canal National Historical Park
Cowpens National Battlefield	Great Smoky Mountains National Park
Ninety Six National Historic Site	Obed Wild and Scenic River
Piscataway Park	Rock Creek Park
Shenandoah National Park


Last Modified Date:	3/21/2023

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 11/5/2025 5:52:39 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		11/5/2025 5:52:39 AM