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Silybum marianum (L.) Gaertn.
blessed milkthistle

       
Symbol:    
Group:    
Family:    
Duration:    
Growth Habit:    
Native Status:  
  
  



Click on the image below to enlarge it and download a high-resolution JPEG file.
Photo of Silybum marianum (L.) Gaertn.
Brother Alfred Brousseau. Courtesy of St. Mary's College of California. ©St. Mary's College of California. Usage Requirements. Any use of copyrighted images requires notification of the copyright holder.
 
More Information:
 

Images:
Silybum marianum (L.) Gaertn.

Click on a thumbnail to view an image, or see all the Silybum thumbnails at the PLANTS Gallery
View a larger version of this image and Profile page for Silybum marianum (L.) Gaertn. View a larger version of this image and Profile page for Silybum marianum (L.) Gaertn.
 

Synonyms:
Silybum marianum (L.) Gaertn.

  CAMA32 Carduus marianus L.
  MAMA27 Mariana mariana (L.) Hill
 

Distribution:
Silybum marianum (L.) Gaertn.

View Native Status
Distribution Map Legend

See U.S. county distributions (when available) by clicking on the map or the linked states below:

USA (AL, AR, AZ, CA, CO, CT, DC, GA, IN, LA, MA, MD, MI, MS, NH, NM, NV, NY, OH, OK, OR, PA, TN, TX, VA, WA, WV), CAN (AB, BC, NB, NS, ON, QC, SK)
 

Related Taxa:
Silybum marianum (L.) Gaertn.

View 477 genera in Asteraceae, 2 species in Silybum
 

Classification:
Silybum marianum (L.) Gaertn.

Click on a scientific name below to expand it in the PLANTS Classification Report.
   
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae – Aster family
Genus Silybum Adans. – milkthistle
Species Silybum marianum (L.) Gaertn. – blessed milkthistle
 

Noxious Weed Information:
Silybum marianum (L.) Gaertn.

This plant and the related entity italicized and indented below are listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete noxious weed list for that location, or click here for a composite list of all Federal and State Noxious Weeds.

Arkansas:
Silybum
thistle              Noxious weed
Oregon:
milk thistle              "B" designated weed
Washington:
milk thistle              Class A noxious weed
milk thistle              Noxious weed seed and plant quarantine
 

U.S. Weed Information:
Silybum marianum (L.) Gaertn.

blessed milkthistle
milk thistle
spotted thistle
variegated thistle
Silybum
thistle

This plant and the related entity italicized and indented above can be weedy or invasive according to the authoritative sources noted below. This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.

STATE        Assorted authors. 200_. State noxious weed lists for 46 states. State agriculture or natural resource departments.
SWSS        Southern Weed Science Society. 1998. Weeds of the United States and Canada. CD-ROM. Southern Weed Science Society. Champaign, Illinois.
WSWS        Whitson, T.D. (ed.) et al. 1996. Weeds of the West. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming. Laramie, Wyoming. 630pp.
 

Introduced Information:
Silybum marianum (L.) Gaertn.

This plant is introduced to some part of the PLANTS Floristic Area, though it may be native in other parts. Click on link below for a partial or complete list of PFA introduced plants.

Scientific Name= A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | all
Common Name= A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | all
 

More Accounts and Images:
Silybum marianum (L.) Gaertn.

View photographs from CalPhotos.

View species account from ARS Germplasm Resources Information Network (GRIN).

View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 38413.

View species account and distribution map from Jepson Interchange (University of California - Berkeley).

View photographs and distribution from University of Tennessee Herbarium.

 

Related Web Sites:
Silybum marianum (L.) Gaertn.

Arizona: abstract & image of milk thistle (Silybum marianum)

Herbal Information Resources

MT-Center for Invasive Plant Management

New Zealand Environment Bay of Plenty: abstract & images

The Nature Conservancy: Wildland Weeds Management & Research Program

Victoria - Natural Resources & Environment: Landcare Notes

WA-King County Noxious Weeds

WA-Noxious Weed List & Information

 
 
Time Generated: 10/07/2008 02:57 PM MDT