johnsongrass

noun

john·​son·​grass ˈjän(t)-sən-ˌgras 

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

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, 5 July 2019

Word History

Etymology

William Johnston †1859 American agriculturist

First Known Use

1873, in the meaning defined above