star thistle

noun

Definition of star thistle

1 : a widely naturalized spiny Old World knapweed (Centaurea calcitrapa) with purple flowers

called also caltrops

2 : any of various knapweeds related to the star thistle

Examples of star thistle in a Sentence

Recent Examples on the Web One of the non-alcoholic beverages showcasing a syrup made from local star thistle honey is made from a 3rd generation beekeeper nearby. Beck Bamberger, Forbes, 19 Sep. 2021 Our 10 acres of oak woodland also were just grasses and invasive species, mainly star thistle, with only a few majestic native black and white oaks. Sally Peterson, oregonlive, 26 Apr. 2021 The surrounding hills, once thick with yellow star thistle where the bees gathered pollen, were stone gray and barren from the Hennessey Fire. Nora Mishanec, SFChronicle.com, 28 Nov. 2020 At the Big Chico Creek Ecological Reserve, Hankins has researched the effect of Indigenous prescribed burning practices on an area that was dominated by star thistle and other invasive plants. Ula Chrobak, Scientific American, 24 Nov. 2020 However, environmental groups and scientists are now warning that brush removal projects may actually exacerbate the risk of fire by inadvertently helping to spread invasive grasses such as black mustard, star thistle and ripgut grass. Joshua Emerson Smith, Los Angeles Times, 30 Sep. 2019 However, environmental groups and scientists are now warning that brush-removal projects may actually exacerbate the risk of fire by inadvertently helping to spread invasive grasses, such as black mustard, star thistle and ripgut bromus. San Diego Union-Tribune, 30 Sep. 2019 Working Dogs for Conservation has trained dogs to find spotted knapweed in Montana, Chinese bush clover in Iowa, yellow star thistle in Colorado, rosy wolf snails in Hawaii and brown tree snakes in Guam. Washington Post, 24 Aug. 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'star thistle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of star thistle

1578, in the meaning defined at sense 1

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Time Traveler for star thistle

Time Traveler

The first known use of star thistle was in 1578

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Dictionary Entries Near star thistle

start from scratch

star thistle

starthroat

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Statistics for star thistle

Cite this Entry

“Star thistle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/star%20thistle. Accessed 16 May. 2022.

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