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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 var. pusilla
Canadian horseweed
Blue Ridge Parkway
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Unknown

Scientific Name with Authority:		Conyza canadensis var. pusilla (Nutt.) Cronquist
Park Preferred Common Name(s):
Park Synonyms:

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:		G5T5
NatureServe State Rank:		NC: S5; VA: S5
Evidence:		0 Observations, 1 Vouchers, 0 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Assateague Island National Seashore	Big Cypress National Preserve
Big Thicket National Preserve	Biscayne National Park
Canaveral National Seashore	Cape Hatteras National Seashore
Cape Lookout National Seashore	Castillo De San Marcos National Monument
Cumberland Island National Seashore	Dry Tortugas National Park
Everglades National Park	Fire Island National Seashore
Fort Caroline National Memorial	Fort Frederica National Monument
Fort Sumter National Historical Park	Gateway National Recreation Area
Grand Canyon National Park	Haleakala National Park
Hawaii Volcanoes National Park	Kalaupapa National Historical Park
Kings Mountain National Military Park	Mammoth Cave National Park
Timucuan Ecological and Historic Preserve


Last Modified Date:	8/21/2007

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 12/13/2025 5:57:34 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	12/13/2025 5:57:34 PM

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