Johnson grass
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Related to johnsongrass: Sorghum halepense
Johnson grass
or john·son·grass (jŏn′sən-grăs′)n.
A tall rhizomatous perennial grass (Sorghum halepense) native to the Mediterranean region, sometimes cultivated for forage but widespread as a weed.
[After William Johnson (died 1859), American agriculturalist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Johnson grass
orjohnsongrass
n
(Plants) 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
[C19: named after William Johnson (died 1859), American agriculturalist who introduced it]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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| Noun | 1. |  Johnson grass - tall perennial grass that spreads by creeping rhizomes and is grown for fodder; naturalized in southern United States where it is a serious pest on cultivated landsorghum - economically important Old World tropical cereal grass |
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