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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Conium maculatum
poison hemlock
Antietam National Battlefield
			Record Status: Approved
Occurrence:	Present
Nativeness:	Non-native
Abundance:	Rare

Scientific Name with Authority:		Conium maculatum L.
Park Preferred Common Name(s):		poison hemlock
Park Synonyms:

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


Park Tags:
ParkTag -


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:		G5
NatureServe State Rank:		MD: SNA
Evidence:		0 Observations, 0 Vouchers, 2 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Allegheny Portage Railroad National Historic Site	Bent's Old Fort National Historic Site
Bighorn Canyon National Recreation Area	Blue Ridge Parkway
Bluestone National Scenic River	Buffalo National River
Camp Nelson National Monument	Carl Sandburg Home National Historic Site
Channel Islands National Park	Chattahoochee River National Recreation Area
Chesapeake and Ohio Canal National Historical Park	City Of Rocks National Reserve
Colorado National Monument	Cuyahoga Valley National Park
Devils Tower National Monument	Ebey's Landing National Historical Reserve
First State National Historical Park	Fort Laramie National Historic Site
Fort Larned National Historic Site	Fort Point National Historic Site
Fort Vancouver National Historic Site	George Washington Carver National Monument
George Washington Memorial Parkway	Gettysburg National Military Park
Gila Cliff Dwellings National Monument	Golden Gate National Recreation Area
Grand Canyon National Park	Grand Teton National Park
Great Falls Park	Harpers Ferry National Historical Park
Herbert Hoover National Historic Site	Hopewell Culture National Historical Park
John Muir National Historic Site	Kennesaw Mountain National Battlefield Park
Lyndon B. Johnson National Historical Park	Mammoth Cave National Park
Mill Springs Battlefield National Monument	Monocacy National Battlefield
Muir Woods National Monument	Natchez Trace Parkway
New River Gorge National Park and Preserve	Nez Perce National Historical Park
Niobrara National Scenic River	North Cascades National Park
Olympic National Park	Pea Ridge National Military Park
Pecos National Historical Park	Pinnacles National Park
Point Reyes National Seashore	President's Park
Presidio of San Francisco	Redwood National Park
Rock Creek Park	Rocky Mountain National Park
Santa Monica Mountains National Recreation Area	Scotts Bluff National Monument
Shenandoah National Park	Shiloh National Military Park
Sleeping Bear Dunes National Lakeshore	Stones River National Battlefield
Tallgrass Prairie National Preserve	Tumacacori National Historical Park
Upper Delaware Scenic and Recreational River	Vanderbilt Mansion National Historic Site
Whiskeytown National Recreation Area	Whitman Mission National Historic Site
Wilson's Creek National Battlefield	Wind Cave National Park
Zion National Park


Last Modified Date:	4/27/2006

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 10/8/2025 12:10:28 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	10/8/2025 12:10:28 PM

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