First Known Use: 1884
Dictionary
johnsongrass
noun, john·son·grass often capitalized \ˈjän(t)-sən-ˌgras\
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
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Origin of JOHNSONGRASS
William Johnston †1859 American agriculturist
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