blue cohosh


: a perennial North American herb (Caulophyllum thalictroides) of the barberry family that has greenish-yellow or purplish flowers and large blue berrylike fruits

Example Sentences

Recent Examples on the Web One trend has been the posting of videos, tweets and images of herbs including mugwort, pennyroyal and blue cohosh. Rachel Lerman, Washington Post, 4 July 2022 Elsewhere, maidenhair, blue cohosh and sassafras abound, auguries of a nutrient-heavy, fertile forest floor. Jonny Diamond, Smithsonian Magazine, 5 Jan. 2022

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

Word History

First Known Use

1814, in the meaning defined above

Time Traveler
The first known use of blue cohosh was in 1814

Dictionary Entries Near blue cohosh

Cite this Entry

“Blue cohosh.” Dictionary, Merriam-Webster, Accessed 1 Feb. 2023.

Medical Definition

blue cohosh

: a tall herb (Caulophyllum thalictroides of the family Berberidaceae) of eastern North America and Asia having large blue berrylike fruits and a thick knotty rootstock that was formerly used as an antispasmodic and emmenagogue
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