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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Silybum marianum
blessed milkthistle
Golden Gate National Recreation Area
			Record Status: Approved
Occurrence:	Present
Nativeness:	Non-native
Abundance:	Unknown

Scientific Name with Authority:		Silybum marianum (L.) Gaertn.
Park Preferred Common Name(s):		blessed milkthistle
Park Synonyms:

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


Park Tags:
Subunit - Giacomini


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:		GNR
NatureServe State Rank:		CA: SNA
Evidence:		10 Observations, 0 Vouchers, 6 Data Store References, 6 External Links


Other Parks Where Species is Listed:
Channel Islands National Park	Eugene O'Neill National Historic Site
Fort Point National Historic Site	Fort Vancouver National Historic Site
John Muir National Historic Site	Muir Woods National Monument
Pinnacles National Park	Point Reyes National Seashore
Presidio of San Francisco	Redwood National Park
Santa Monica Mountains National Recreation Area	Sequoia and Kings Canyon National Parks


Last Modified Date:	2/8/2006

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 5/27/2026 7:41:26 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		5/27/2026 7:41:26 PM