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tall thistle

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Definition of tall thistle

: a coarse prickly herb (Cirsium altissimum) of the eastern U.S. with large usually solitary heads of purplish flowers

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“Tall thistle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tall%20thistle. Accessed 22 Jan. 2021.

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