Selected images for cogongrass (Imperata cylindrica )
Cogongrass 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. Cogongrass is best identified in the spring by the large fuzzy panicle of flowers and seeds, giving the plant a cottony or silky look. Flower heads are 2-8 in. (5.1-20.3 cm) long, silvery-white and cylindrical. Cogongrass 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. Cogongrass 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.
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1380038 cogongrass Imperata cylindrica Seed(s) Chris Evans |
2308122 cogongrass Imperata cylindrica Feature(s) L. M. Marsh |
5289099 cogongrass Imperata cylindrica Foliage Florida Division of Plant Industry Archive |
1380057 cogongrass Imperata cylindrica Rhizome / Stolon Chris Evans |
5302013 cogongrass Imperata cylindrica Plant(s) Chris Evans |
1115008 cogongrass Imperata cylindrica Plant(s) Charles T. Bryson |
1237047 cogongrass Imperata cylindrica Infestation Wilson Faircloth |
5422125 cogongrass Imperata cylindrica Seed(s) Wilson Faircloth |
1299104 cogongrass Imperata cylindrica Infestation John D. Byrd |
1391424 cogongrass Imperata cylindrica Research John D. Byrd |
2131096 cogongrass Imperata cylindrica Prescribed Fire Chris Evans |
1148137 cogongrass Imperata cylindrica Control USDA APHIS PPQ Archive |
