plural noun

: an order of lower tracheophytes (subdivision Sphenopsida) that have the sporangiophores inserted directly on the axis and have existed since the Devonian see calamariaceae, equisetaceae compare archaeocalamites

Word History


New Latin, from Equisetum + -ales

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Dictionary Entries Near Equisetales

Cite this Entry

“Equisetales.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Equisetales. Accessed 2 Oct. 2023.

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