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holy thistle

DEFINITIONS OF: holy thistle

1

n tall Old World biennial thistle with large clasping white-blotched leaves and purple flower heads; naturalized in California and South America

Synonyms:
Our Lady's mild thistle, Silybum marianum, blessed thistle, lady's thistle, milk thistle
Type of:
herb, herbaceous plant
a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
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