john·​son·​grass ˈjän(t)-sən-ˌgras How to pronounce johnsongrass (audio)
often capitalized
: 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

Example Sentences

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, 5 July 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'johnsongrass.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


William Johnston †1859 American agriculturist

First Known Use

1873, in the meaning defined above

Time Traveler
The first known use of johnsongrass was in 1873

Dictionary Entries Near johnsongrass

Cite this Entry

“Johnsongrass.” Dictionary, Merriam-Webster, Accessed 10 Jun. 2023.

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