Skip to main content

Center for Aquatic and Invasive Plants Logo    Plant Management in Florida Waters

Center for Aquatic and Invasive Plants Logo    Plant Management in Florida Waters

Quick Facts

  • Scientific name: Luziola subintegra
  • Origin: South & Central America to Mexico
  • Introduction: First North American report Lake Okeechobee – 2007
  • Aquatic community: Emergent
  • Habitat: Wet soils to floating mats
  • Distribution: Two South Florida lakes
  • Management effort: Eradication
  • 2017 public waters / plant acres: 2 (< 1%) / 82
  • 2017 Waters / acres controlled: 2 / 706

Tropical american water grass Tropical american water grass


Environmental and Economic Concerns

  • Emergent, rooted in the substrate – shallowly submersed floating mats can exist in deep water
  • Forms dense rooted stands that can alter habitats and exclude native plants
  • Fragments drift into and colonize stands of emergent plants
    • overgrow and outcompete other emergent and floating plants, including water hyacinth
    • dense floating / drifting mats shade out submersed plants
    • restrict water flow and motor boat traffic
  • Reproduces by seeds and fragments that drift to and colonize new areas
    • contribute to rapid spread and invasiveness
    • fragments easily spread by boat traffic and water movement

Management Options

  • Biological: None available
  • Chemical: Glyphosate, Imazapyr or combinations
  • Mechanical: Not employed at this time
  • Physical: Not employed at this time

Florida Fish & Wildlife Conservation Commission, Status of the Aquatic Plant Maintenance Program in Florida Public Waters, Annual Report – Fiscal Year 2016-2017.