Selected images for johnsongrass (Sorghum halepense )
Johnsongrass is a tall (up to 8 ft. [2.4 m]), rhizomatous, perennial grass that invades open areas throughout the United States. The 2 ft. (0.6 m) long, lanceolate leaves are arranged alternately along a stout, hairless, somewhat upward branching stem and have distinct, white midribs. Flowers occur in a loose, spreading, purplish panicle. Johnsongrass is adapted to a wide variety of habitats including open forests, old fields, ditches and wetlands. It spreads aggressively and can form dense colonies which displace native vegetation and restrict tree seedling establishment. Johnsongrass has naturalized throughout the world, but it is thought to be native to the Mediterranean region. It was first introduced into the United States in the early 1800s as a forage crop.
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0581065 johnsongrass Sorghum halepense Flower(s) Jil Swearingen |
1120383 johnsongrass Sorghum halepense Flower(s) James H. Miller |
1195034 johnsongrass Sorghum halepense Spikelet(s) Julia Scher |
1265102 johnsongrass Sorghum halepense Plant(s) Barry Fitzgerald |
1459234 johnsongrass Sorghum halepense Infestation Steve Dewey |
1459236 johnsongrass Sorghum halepense Seedling(s) Steve Dewey |
1459237 johnsongrass Sorghum halepense Root(s) Steve Dewey |
1459239 johnsongrass Sorghum halepense Feature(s) Steve Dewey |
1459241 johnsongrass Sorghum halepense Plant(s) Steve Dewey |
1459242 johnsongrass Sorghum halepense Rhizome / Stolon Steve Dewey |
1459244 johnsongrass Sorghum halepense Feature(s) Steve Dewey |
1624081 johnsongrass Sorghum halepense Infestation Bonnie Harper-Lore |
2100036 johnsongrass Sorghum halepense Plant(s) Charles T. Bryson |
2149085 johnsongrass Sorghum halepense Root(s) Chris Evans |
2149089 johnsongrass Sorghum halepense Plant(s) Chris Evans |
2149092 johnsongrass Sorghum halepense Foliage Chris Evans |
2149094 johnsongrass Sorghum halepense Foliage Chris Evans |
2149095 johnsongrass Sorghum halepense Stem(s) Chris Evans |
2308021 johnsongrass Sorghum halepense Infestation David J. Moorhead |
5307057 johnsongrass Sorghum halepense Plant(s) USDA PLANTS Database |
5309001 johnsongrass Sorghum halepense Plant(s) USDA PLANTS Database |
5309002 johnsongrass Sorghum halepense Fruit(s) Steve Hurst |
