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Johnson grass

noun
  1. a sorghum, Sorghum halepense, that spreads by creeping rhizomes, grown for fodder.
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Origin of Johnson grass

1880–85, Americanism; named after William Johnson, American agriculturist who first planted it in 1840
Also called Aleppo grass, Egyptian millet, Means grass.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for johnson grass

Johnson grass

noun
  1. a persistent perennial Mediterranean grass, Sorghum halepense, cultivated for hay and pasture in the US where it also grows as a weedSee also sorghum
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Word Origin

C19: named after William Johnson (died 1859), American agriculturalist who introduced it
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012