spear thistle
Noun: 1. A type of European thistle: A tall, prickly plant (Cirsium vulgare) native to Europe, characterized by its large, purple flower heads and very spiny leaves and stems. It is considered an invasive weed in many regions, including the United States.
The term "spear thistle" is used as a common name for this specific plant species. It is typically used in botanical, agricultural, and ecological contexts. - It functions as a countable noun (e.g., a spear thistle, several spear thistles).
- Noun:
- The field was overrun with spear thistle, its spiny leaves making it difficult to walk through.
- Conservationists are working to control the spread of the invasive spear thistle.
- Despite being a weed, the spear thistle provides an important source of nectar for bees.
- The spear thistle is also known by its scientific name, .
- It is the national flower of Scotland, where it is simply called "the thistle."
- Bull thistle: Another common name for the same plant ().
- Plume thistle: A general term for thistles in the genus, which includes the spear thistle.
- Thistle (n): The general term for a group of flowering plants characterized by leaves with sharp prickles.
- Bull thistle
- Cirsium vulgare (scientific name)
"Spear thistle" refers specifically to one species of thistle. It does not have other distinct meanings, though the word "thistle" alone can refer to many different plants within several genera (e.g., Cirsium, Carduus, Onopordum).
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European thistle with rather large heads and prickly leaves; extensively naturalized as a weed in the United States
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