Pest plant - Variegated thistle

  • Fact sheet
  • August 2015
variegated-thistle
Variegated thistle infestation on roadside.

Variegated thistle (Silybum marianum) is an annual herb also known as St Mary’s thistle, milk thistle or bull thistle. It is a competitive pasture weed.

Description

Why is it a problem?

Distribution

Ecology

How it spreads

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