noun, often capitalized
john·​son·​grass | \ ˈjän(t)-sən-ˌgras How to pronounce johnsongrass (audio) \

Definition of johnsongrass

: a tall perennial sorghum (Sorghum halepense) originally of the Mediterranean region that is widely used for forage in warm areas and often becomes naturalized as a weed

Examples of johnsongrass in a Sentence

Recent Examples on the Web When the dog days of summer come calling, the rain disappears, the johnsongrass and mosquitoes show up, and the zucchini are the size of Louisville Sluggers. Paul Cappiello, The Courier-Journal, "Need summer plant inspiration? Here are 4 beautiful gardens to visit near Louisville," 5 July 2019

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

First Known Use of johnsongrass

1873, in the meaning defined above

History and Etymology for johnsongrass

William Johnston †1859 American agriculturist

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The first known use of johnsongrass was in 1873

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Cite this Entry

“Johnsongrass.” Dictionary, Merriam-Webster, Accessed 31 Oct. 2020.

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