tall blue lettuce

noun

Definition of tall blue lettuce

: a North American annual or biennial herb (Lactuca spicata) bearing mostly pinnatifid leaves and small blue or white flower heads in large clusters

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Cite this Entry

“Tall blue lettuce.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tall%20blue%20lettuce. Accessed 26 Sep. 2022.

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