Monday, July 13, 2009

Cogongrass: Invasive grass found in Thomasville and Thomas County

This is a notice to all to be on the look out for Cogongrass on your property. Cogongrass is a very invasive grass that spreads by rhizomes and forms dense, typically circular areas that excludes all other vegetation.
It is very difficult to remove and mowing and burning helps simulate growth of the cogongrass. If you believe you have this weed, please contact your County Extension Agent or your local Forestry Commission Office.

From :

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.

No comments: