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Species Profiles


JohnsongrassScientific name: Sorghum halepense (L.) Pers. (ITIS)

Common names: Johnsongrass, Johnson grass, Aleppo grass, Aleppo milletgrass

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Selected Resources

Native To: Mediterranean Region (Howard 2004)

Date of U.S. Introduction: Early 1800s (Warwick and Black 1983)

Means of Introduction: Introduced for forage (Howard 2004)

Impact: Agricultural weed that can cause serious economic losses (Howard 2004)

Current U.S. Distribution:


Selected Resources:

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Federal Noxious Weed Disseminules of the U.S. - Fact Sheet:
Sorghum halepense

USDA. APHIS. PPQ. Center for Plant Health Science and Technology; California Department of Food and Agriculture.

Pacific Island Ecosystems at Risk (PIER) - Sorghum halepense
USDA. FS. Institute of Pacific Islands Forestry.

Invasive Plant Atlas of the MidSouth - Johnsongrass
Mississippi State University. Geosystems Research Institute.

Invasive Plant Atlas of the United States - Johnsongrass
University of Georgia. Center for Invasive Species and Ecosystem Health.

Texas Invasives Database - Sorghum halepense

The Quiet Invasion: A Guide to Invasive Species of the Galveston Bay Area - Johnson Grass
Texas Commission on Environmental Quality, Galveston Bay Estuary Program; Houston Advanced Research Center (HARC).

Invasive Species Compendium - Sorghum halepense
CAB International.

Global Invasive Species Database - Sorghum halepense (grass)
IUCN. Species Survival Commission. Invasive Species Specialist Group.

Federal Government

U.S. National Plant Germplasm System - Sorghum halepense
USDA. ARS. National Genetic Resources Program. GRIN-Global.

Fire Effects Information System (FEIS) - Sorghum halepense
USDA. FS. Rocky Mountain Research Station. Fire Sciences Laboratory.

PLANTS Database - Johnsongrass
USDA. NRCS. National Plant Data Center.

International Government

Weeds in Australia - Johnson Grass (Sorghum halepense)
Australian Government. Department of the Environment and Energy.

State Government

Encycloweedia: Data Sheet - Sorghum genus
California Department of Food and Agriculture.
See also: Included on California's noxious weed list; see Encycloweedia: Program Details for additional resources

Noxious Weed Species - Johnsongrass
Colorado Department of Agriculture. Conservation Services Division. Noxious Weed Program.

Field Guide: Invasive - Johnson Grass
Missouri Department of Conservation.
See also: Problem Plant Control (scroll to Invasive Plants section) for more information to help you identify and control most common invasive plants in Missouri

Invasive Species Leaflet - Sorghum halepense (Johnson Grass) (Mar 2010; PDF | 197 KB)
North Carolina Department of Agriculture and Consumer Services. Forest Service.

See also: Forest Health Publications for more Invasive Species Leaflets

Invasive Plants in Pennsylvania: Johnsongrass (PDF | 589 KB)
Pennsylvania Department of Conservation and Natural Resources.
See also: Invasive Plant Fact Sheets for plant species (trees, shrubs, vines, herbs and aquatic plants) that have impacted the state's natural lands

Class A Noxious Weed: Johnsongrass
Washington State Noxious Weed Control Board.

Johnsongrass (Sorghum halepense)
Wisconsin Department of Natural Resources.


Johnsongrass Control in Cropland (PDF | 257 KB)
University of Delaware. Cooperative Extension.
See also: Weed Management Guides for more species

Invasive, Exotic Plants of the Southeast - Johnsongrass
North Carolina State University. Cooperative Extension. Going Native: Urban Landscaping for Wildlife with Native Plants.

Ohio Perennial & Biennial Weed Guide - Johnsongrass
Ohio State University. Ohio Agricultural Research and Development Center.


Integrated Taxonomic Information System. Sorghum halepense. [Accessed Sep 10, 2014].

Howard, J.L. 2004. Sorghum halepense. In: Fire Effects Information System. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory.

Warwick, S.I. and L.D. Black. 1983. The biology of Canadian weeds. 61. Sorghum halepense (L.) PERS. Canadian Journal of Plant Science 63:997-1014.

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Last Modified: Sep 08, 2018
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