bull thistle
noun
: a biennial Eurasian thistle (Cirsium vulgare) with purplish flower heads and prickly leaves that is naturalized as a weed in the U.S.
Examples of bull thistle in a Sentence
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Many, such as bull thistle, are noxious weeds that can displace native plants and contribute to problems such as soil erosion.
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Christina Grozinger, Discover Magazine, 22 May 2024
Errol’s rolling links, which once had lush greens and fairways, are now dry and brown and pocked by bull thistles and other prickly weeds.
—Stephen Hudak, OrlandoSentinel.com, 18 Apr. 2018
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Christina Grozinger, Discover Magazine, 22 May 2024
Errol’s rolling links, which once had lush greens and fairways, are now dry and brown and pocked by bull thistles and other prickly weeds.
—Stephen Hudak, OrlandoSentinel.com, 18 Apr. 2018
Cite this Entry
“Bull thistle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bull%20thistle. Accessed 3 Nov. 2025.
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