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Noun: blessed thistle
  1. Tall Old World biennial thistle with large clasping white-blotched leaves and purple flower heads; naturalized in California and South America
    - milk thistle, lady's thistle, Our Lady's mild thistle, holy thistle, Silybum marianum
     
  2. Annual of Mediterranean to Portugal having hairy stems and minutely spiny-toothed leaves and large heads of yellow flowers
    - sweet sultan, Cnicus benedictus

Derived forms: blessed thistles

Type of: herb, herbaceous plant, thistle

Part of: Cnicus, genus Cnicus, genus Silybum, Silybum

Encyclopedia: Blessed thistle