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

NPSpecies - Park Species Profile


Conyza canadensis
HORSE-WEED
Theodore Roosevelt National Park
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Common

Scientific Name with Authority:		Conyza canadensis (L.) Cronquist
Park Preferred Common Name(s):		HORSE-WEED
Park Synonyms:		Conyza canadensis var. canadensis

Taxonomic Hierarchy:		Kingdom Plantae, Phylum Tracheophyta, Subphylum Spermatophytina, Order Asterales, Family Asteraceae, Genus Conyza, Species Conyza canadensis


Park Tags:
ParkTag -


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


Other Parks Where Species is Listed:
Abraham Lincoln Birthplace National Historical Park	Acadia National Park
Agate Fossil Beds National Monument	Amistad National Recreation Area
Antietam National Battlefield	Apostle Islands National Lakeshore
Appalachian National Scenic Trail	Aztec Ruins National Monument
Badlands National Park	Bent's Old Fort National Historic Site
Big Bend National Park	Big South Fork National River and Recreation Area
Big Thicket National Preserve	Bighorn Canyon National Recreation Area
Black Canyon of the Gunnison National Park	Boston Harbor Islands National Recreation Area
Buffalo National River	Cabrillo National Monument
Canaveral National Seashore	Canyon De Chelly National Monument
Cape Hatteras National Seashore	Cape Lookout National Seashore
Capulin Volcano National Monument	Carl Sandburg Home National Historic Site
Carlsbad Caverns National Park	Casa Grande Ruins National Monument
Chaco Culture National Historical Park	Channel Islands National Park
Charles Pinckney National Historic Site	Chattahoochee River National Recreation Area
Chickamauga and Chattanooga National Military Park	Chickasaw National Recreation Area
Chiricahua National Monument	City Of Rocks National Reserve
Colonial National Historical Park	Colorado National Monument
Coronado National Memorial	Cowpens National Battlefield
Crater Lake National Park	Cumberland Gap National Historical Park
Curecanti National Recreation Area	Cuyahoga Valley National Park
Delaware Water Gap National Recreation Area	Devils Tower National Monument
Ebey's Landing National Historical Reserve	Effigy Mounds National Monument
El Malpais National Monument	El Morro National Monument
Fire Island National Seashore	First State National Historical Park
Fort Bowie National Historic Site	Fort Caroline National Memorial
Fort Donelson National Battlefield	Fort Frederica National Monument
Fort Laramie National Historic Site	Fort Larned National Historic Site
Fort Point National Historic Site	Fort Pulaski National Monument
Fort Sumter National Historical Park	Fort Union National Monument
Fort Union Trading Post National Historic Site	Fort Vancouver National Historic Site
Gateway National Recreation Area	George Washington Birthplace National Monument
George Washington Carver National Monument	George Washington Memorial Parkway
Gettysburg National Military Park	Gila Cliff Dwellings National Monument
Glacier National Park	Grand Canyon National Park
Grand Portage National Monument	Grand Teton National Park
Great Falls Park	Great Sand Dunes National Park and Preserve
Great Smoky Mountains National Park	Guadalupe Mountains National Park
Guilford Courthouse National Military Park	Gulf Islands National Seashore
Herbert Hoover National Historic Site	Homestead National Historical Park
Hopewell Culture National Historical Park	Hopewell Furnace National Historic Site
Hot Springs National Park	Hubbell Trading Post National Historic Site
Indiana Dunes National Park	Isle Royale National Park
Jewel Cave National Monument	John Day Fossil Beds National Monument
John Muir National Historic Site	Johnstown Flood National Memorial
Joshua Tree National Park	Kalaupapa National Historical Park
Kenilworth Park and Aquatic Gardens	Kennesaw Mountain National Battlefield Park
Knife River Indian Villages National Historic Site	Lake Mead National Recreation Area
Lake Roosevelt National Recreation Area	Little River Canyon National Preserve
Lyndon B. Johnson National Historical Park	Mammoth Cave National Park
Manassas National Battlefield Park	Martin Van Buren National Historic Site
Mesa Verde National Park	Minute Man National Historical Park
Mississippi National River and Recreation Areas	Missouri National Recreational River
Mojave National Preserve	Monocacy National Battlefield
Montezuma Castle National Monument	Morristown National Historical Park
Mount Rainier National Park	Mount Rushmore National Memorial
Navajo National Monument	New River Gorge National Park and Preserve
Nez Perce National Historical Park	North Cascades National Park
Obed Wild and Scenic River	Oregon Caves National Monument
Organ Pipe Cactus National Monument	Ozark National Scenic Riverways
Padre Island National Seashore	Pea Ridge National Military Park
Pecos National Historical Park	Petersburg National Battlefield
Petrified Forest National Park	Petroglyph National Monument
Pictured Rocks National Lakeshore	Pipestone National Monument
Presidio of San Francisco	Prince William Forest Park
Rainbow Bridge National Monument	Richmond National Battlefield Park
Rock Creek Park	Rocky Mountain National Park
Sagamore Hill National Historic Site	Saguaro National Park
Saint Croix National Scenic Riverway	San Antonio Missions National Historical Park
Saratoga National Historical Park	Scotts Bluff National Monument
Sequoia and Kings Canyon National Parks	Shiloh National Military Park
Sleeping Bear Dunes National Lakeshore	Stones River National Battlefield
Suitland Parkway	Tallgrass Prairie National Preserve
Thomas Stone National Historic Site	Timucuan Ecological and Historic Preserve
Tonto National Monument	Tumacacori National Historical Park
Tuzigoot National Monument	Valley Forge National Historical Park
Voyageurs National Park	Walnut Canyon National Monument
War in the Pacific National Historical Park	Washita Battlefield National Historic Site
White Sands National Park	Whitman Mission National Historic Site
Wilson's Creek National Battlefield	Wind Cave National Park
Wolf Trap National Park for the Performing Arts	Yellowstone National Park
Yosemite National Park	Yucca House National Monument


Last Modified Date:	12/4/2006

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 10/1/2025 6:59:57 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	10/1/2025 6:59:57 PM

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