Johnson grass

noun

a sorghum, Sorghum halepense, that spreads by creeping rhizomes, grown for fodder.
Also called Aleppo grass, Egyptian millet, Means grass.

Origin of Johnson grass

1880–85, Americanism; named after William Johnson, American agriculturist who first planted it in 1840

British Dictionary definitions for johnson grass

Johnson grass

noun

a persistent perennial Mediterranean grass, Sorghum halepense, cultivated for hay and pasture in the US where it also grows as a weed See also sorghum

Word Origin for Johnson grass

C19: named after William Johnson (died 1859), American agriculturalist who introduced it