- Imperata cylindrica is a perennial, colony-forming grass which can grow up to 6 ft. (1.8 m) tall.
- Leaves have an off-center, whitish midrib and finely serrated margins. Leaves are up to 6 ft. (1.8 m) long, 0.5-0.75 in. (1.3-1.9 cm) wide, stiff, and have a sharp, pointed apex. Rhizomes are whitish, branched, scaly and sharp at the tips.
- Flower heads are 2-8 in. (5.1-20.3 cm) long, silvery-white and cylindrical.
- Imperata cylindrica is best identified in the spring by the large fuzzy panicle of flowers and seeds, giving the plant a cottony or silky look.
- Ecological Threat
- Imperata cylindrica is an extremely aggressive invader with the capability of invading a range of sites. It forms dense, usually circular infestations that exclude all other vegetation. It is native to Southeast Asia and was accidently introduced into the southeast United States in packing material in the early 1900s. It was also intentionally introduced for erosion control and livestock forage.
- Invasive Species Management Plans for Florida - University of Florida - Center for Aquatic and Invasive Plants
- Nonnative Invasive Plants of Southern Forests - USDA Forest Service
- Biological Control of Invasive Plants in the Eastern United States - USDA Forest Service
- Domestic Programs Pest Evaluation - USDA APHIS PPQ
- Cogongrass Web Site - Bugwood Network
- Identifying and Controlling Cogongrass in Georgia - GA Invasive Species Task Force
- Weeds Gone Wild: Alien Plant Invaders of Natural Areas - Plant Conservation Alliance
- Federal Noxious Weed Disseminules of the U.S. - USDA-APHIS
- Weed of the Week - USDA Forest Service
- Identification and Biology of Non-Native Plants in Florida's Natural Areas - University of Florida
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EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org
Most Troublesome / Most Common Agricultural Weed List
This map identifies those states that consider this species either most troublesome or most common in at least one commodity. For more information, visit the MTMC project page.
|No Data for this state|
|Troublesome or Common weed in one or more crops|
Invasive Listing Sources
- Alabama Invasive Plant Council
- Alachua County Cogongrass Initiative
- Apalachicola Invasive Working Group
- Archbold Biological Station
- Arkansas Noxious Weeds - Noxious/Prohibited
- California Noxious Weeds
- Colorado Noxious Weeds
- East Central Florida CISMA
- Faith Campbell, 1998
- Florida Exotic Pest Plant Council - Category I
- Florida Noxious Weeds
- Georgia Exotic Pest Plant Council - Category 1 Alert
- Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
- John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
- Mid-Atlantic Exotic Pest Plant Council, 2005
- Minnesota Noxious Weeds
- Mississippi Noxious Weeds
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- North Carolina Noxious Weeds - Class A
- South Carolina Exotic Pest Plant Council - Severe Threat
- South Carolina Noxious Weeds
- Southwest Florida Cooperative Invasive Species Mgmt. Area
- Tennessee Exotic Pest Plant Council
- Tennessee Noxious Weeds
- Treasure Coast Cooperative Invasive Species Mgmt. Area - EARLY DRAFT
- USDA APHIS Regulated Pest List
- Vermont Noxious Weeds
- Virginia Invasive Plant Species List
- WeedUS - Database of Plants Invading Natural Areas in the United States
CategoriesCategory: Grass or Grasslike
|Common Name Reference:|| USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|
|Scientific Name Reference:||USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|