eq·​ui·​se·​tum | \ ˌe-kwə-ˈsē-təm How to pronounce equisetum (audio) \
plural equisetums or equiseta\ ˌe-​kwə-​ˈsē-​tə How to pronounce equisetum (audio) \

Definition of equisetum

Examples of equisetum in a Sentence

Recent Examples on the Web Veteran gardeners know them well: chickweed and equisetum. Jeff Lowenfels, Anchorage Daily News, "Chickweed and horsetails: Weed them now, while it’s early in the season," 28 May 2020 The only downside was that my property has a great deal of equisetum (horsetail), which enjoyed spreading its roots into the spaces left by the wavy layer in the middle. oregonlive, "Ask an expert: Check out the many gardening uses for corrugated cardboard," 5 Jan. 2020 Not only do equisetum spread by underground roots, but also by above ground spores. Jeff Lowenfels, Anchorage Daily News, "It’s been a cool spring, but don’t be fooled. Now is the time to put plants in the ground.," 31 May 2018 These tools are great for cutting down equisetum, grasses and weeds along buildings, swings, fences, under shrubs and around trees. Jeff Lowenfels, Alaska Dispatch News, "Don’t plant mayday trees. Don’t even let your existing ones remain.," 23 June 2017

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

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First Known Use of equisetum

1761, in the meaning defined above

History and Etymology for equisetum

New Latin, from Latin equisaetum horsetail plant, from equus horse + saeta bristle

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Time Traveler for equisetum

Time Traveler

The first known use of equisetum was in 1761

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Cite this Entry

“Equisetum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/equisetum. Accessed 17 Apr. 2021.

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