Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org
johnsongrass (Sorghum halepense) plant(s)
Steve Dewey, Utah State University, Bugwood.org
Leaf collar region
Chris Evans, University of Illinois, Bugwood.org
Stem
Ligule
johnsongrass (Sorghum halepense) foliage
Roots
johnsongrass (Sorghum halepense) feature(s)