blessed thistle
Noun: 1. A Mediterranean annual plant: A herbaceous plant (Cnicus benedictus or Centaurium benedictus) native to the Mediterranean region, characterized by hairy stems, spiny leaves, and yellow flower heads. It has a history of use in traditional medicine. 2. A tall Old World biennial thistle: A large thistle (Silybum marianum), also known as milk thistle, with distinctive white-blotched leaves that clasp the stem and purple flower heads. It has become naturalized in other regions like California.
The term "blessed thistle" refers to two distinct plant species. The specific meaning is usually determined by context, often relating to historical herbal use or botanical description. The first definition is the original referent in herbalism, while the second is a common, visually distinctive thistle.
- Referring to the Mediterranean annual:
- The herbalist recommended a tea made from blessed thistle for digestive support.
- Blessed thistle (Cnicus benedictus) was cultivated in monastery gardens for its purported medicinal properties.
- Referring to the tall biennial thistle:
- The field was overtaken by the striking blessed thistle, its white-veined leaves easy to spot.
- Also called milk thistle, blessed thistle (Silybum marianum) is now common along roadsides in California.
- In historical or herbal contexts, "blessed thistle" most precisely denotes . The "blessed" in its name originates from its historical use in treating the bubonic plague ("the Blessing").
- In modern botanical or general descriptions, especially in North America, "blessed thistle" frequently refers to , named for the white markings legendarily associated with the Virgin Mary's milk.
- Cnicus benedictus: The botanical Latin name for the Mediterranean annual blessed thistle.
- Silybum marianum: The botanical Latin name for the milk thistle variety of blessed thistle.
- Milk thistle: A common name for , referring to the milky-white veins on its leaves.
- Holy thistle: Another synonym, particularly for .
- For : St. Benedict's thistle, holy thistle, spotted thistle.
- For : Milk thistle, Mary's thistle, lady's thistle.
The dual meaning of "blessed thistle" is a classic example of a common name ambiguity in botany. The two plants are not closely related; they share the name due to historical medicinal use and similar spiny appearances. For clarity, scientific Latin names are always preferred.
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annual of Mediterranean to Portugal having hairy stems and minutely spiny-toothed leaves and large heads of yellow flowers
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tall Old World biennial thistle with large clasping white-blotched leaves and purple flower heads; naturalized in California and South America
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