Silybum marianum

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Legend for Species Pages

Milk Thistle

Silybum marianum (L.) Gaertn.
  • ANPC Rank –
  • Moss, Flora of Alberta – Rare
  • Global Invasive Species Database – No
  • NatureServe Rank – Medium
  • Haber, Upland – No
  • Haber, Wetland – No
  • CWF, Status & Invasive Range – No
  • Alberta Revegetation Guidelines – No
  • The Nature Conservancy – Yes, w/ ESA
  • CBCN – No
  • AB Weed – No

Remarks

Not reported as a problem in Alberta, but does occur here and is a problem in the US. Is grown as an ornamental here.

photo from XID Services
Silymari XID Silybum marianum 606c2.JPG
Silymari XID Silybum marianum 506.JPG
Silymari XID Silybum marianum 306.JPG