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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Solanum rostratum
buffalobur, buffalobur nightshade, Colorado bur, horned nightshade, Kansas thistle, Mexican thistle, Texas thistle
Grand Canyon National Park
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:

Scientific Name with Authority:		Solanum rostratum Dunal
Park Preferred Common Name(s):
Park Synonyms:

Taxonomic Hierarchy:		Kingdom Plantae, Phylum Tracheophyta, Subphylum Spermatophytina, Order Solanales, Family Solanaceae, Genus Solanum, Species Solanum rostratum


Park Tags:
ParkTag -


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


Other Parks Where Species is Listed:
Acadia National Park	Amistad National Recreation Area
Aztec Ruins National Monument	Badlands National Park
Bent's Old Fort National Historic Site	Big Bend National Park
Bryce Canyon National Park	Buffalo National River
Canyon De Chelly National Monument	Canyonlands National Park
Capulin Volcano National Monument	Carlsbad Caverns National Park
Chickasaw National Recreation Area	Chiricahua National Monument
Colorado National Monument	Coronado National Memorial
Fort Davis National Historic Site	Fort Laramie National Historic Site
Fort Larned National Historic Site	Fort Pulaski National Monument
Fort Sumter National Historical Park	Fort Union Trading Post National Historic Site
George Washington Carver National Monument	Glen Canyon National Recreation Area
Guadalupe Mountains National Park	Hot Springs National Park
Hubbell Trading Post National Historic Site	Jewel Cave National Monument
Lake Mead National Recreation Area	Lake Meredith National Recreation Area
Lyndon B. Johnson National Historical Park	Missouri National Recreational River
Mount Rushmore National Memorial	Padre Island National Seashore
Petrified Forest National Park	Pipestone National Monument
Presidio of San Francisco	San Antonio Missions National Historical Park
Santa Monica Mountains National Recreation Area	Scotts Bluff National Monument
Tallgrass Prairie National Preserve	Theodore Roosevelt National Park
Walnut Canyon National Monument	Washita Battlefield National Historic Site
Wind Cave National Park


Last Modified Date:	9/21/2005

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 10/8/2025 5:25:59 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 5:25:59 PM

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