Invasive Species Control Cogongrass Imperata cylindrica

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PDF 3 pages compared with 4 weed species by National Resources Conservation Service

Resembles Johnsongrass, Sorghum halepense (L.) Pers.; purpletop, Tridens flavus (L.) A.S. Hitchc.; silver plumegrass, Saccharum alopecuroidum (L.) Nutt.; and sugarcane plumegrass, S. giganteum (Walt.) Pers.?all having a stem and none having an off-center midvein.

Ecology. Grows in full sunlight to partial shade, and, thus, can invade a range of sites. Often in circular infestations with rapidly growing and branching rhizomes forming a dense mat to exclude most other vegetation. Aggressively invades right-of-ways, new forest plantations, open forests, old fields, and pastures. Absent in areas with frequent tillage. Colonizes by rhizomes and spreads by wind-dispersed seeds and promoted by burning. Highly flammable and a severe fire hazard, burning extremely hot especially in winter.

Referencees
Miller, James H. 2003. Nonnative invasive plants of southern forests: a field guide for identification and control. Gen. Tech. Rep. SRS?62. Asheville, NC:
U.S. Department of Agriculture, Forest Service, Southern Research Station. 93 p.
Alabama Cooperative Extension System, Wanted Dead Not Alive: Cogongrass, ANR-1241, Sept. 2003

Invasive Species Control Cogongrass Imperata cylindrica (L.) Beauv.

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