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

NPSpecies - Park Species Profile


Helianthus maximiliani
Maximilian sunflower
Lyndon B. Johnson National Historical Park
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Uncommon

Scientific Name with Authority:		Helianthus maximiliani Schrad.
Park Preferred Common Name(s):
Park Synonyms:

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


Park Tags:
ParkTag -


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


Other Parks Where Species is Listed:
Agate Fossil Beds National Monument	Apostle Islands National Lakeshore
Badlands National Park	Chickasaw National Recreation Area
Devils Tower National Monument	Fort Larned National Historic Site
Fort Union Trading Post National Historic Site	George Washington Carver National Monument
Grand Portage National Monument	Herbert Hoover National Historic Site
Isle Royale National Park	Knife River Indian Villages National Historic Site
Lake Meredith National Recreation Area	Mammoth Cave National Park
Mississippi National River and Recreation Areas	Missouri National Recreational River
Niobrara National Scenic River	Pipestone National Monument
San Antonio Missions National Historical Park	Scotts Bluff National Monument
Shenandoah National Park	Tallgrass Prairie National Preserve
Theodore Roosevelt National Park	Voyageurs National Park
Washita Battlefield National Historic Site	Wilson's Creek National Battlefield
Wind Cave National Park


Last Modified Date:	1/21/2005

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 10/9/2025 3:41:54 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	10/9/2025 3:41:54 PM

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