Meaning of Johnson grass in English:

Johnson grass

noun

(also Johnson's grass)
US
  • A tall Mediterranean grass, Sorghum halepense, now widely naturalized elsewhere and grown for fodder, but often regarded as a noxious weed.

Pronunciation

Johnson grass

/ˈdʒɒnsn ɡrɑːs/ /ˈdʒɒnsn ɡras/

Origin

Late 19th century. In some forms from the name of Col. William Johnson (fl. 1840), United States plantation owner, who was the first to grow the grass in large quantities in the United States + grass.