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You are here: Home / Aquatic Species / Species Profiles / Water Hyacinth
Aquatic Species
Species Profiles

Water Hyacinth

Water HyacinthScientific name: Eichhornia crassipes (Mart.) Solms (ITIS)

Common names: Common water-hyacinth, floating water hyacinth

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Selected Resources

Native To: South America (Zhang et al. 2010)

Date of U.S. Introduction: 1884 (Zhang et al. 2010)

Means of Introduction: Ornamental (Toft et al. 2003)

Impact: Forms dense colonies that block sunlight and crowd out native species (Toft et al. 2003)

Current U.S. Distribution:



Selected Resources:

Council or Task Force

Species of Concern Fact Sheet: Water Hyacinth
Aquatic Nuisance Species Task Force.

Invasive Plants of California's Wildlands - Eichhornia crassipes
California Invasive Plant Council.
In online book: Bossard, C.C., J.M. Randall, and M.C. Hoshovsky (Editors). 2000. Invasive Plants of California's Wildlands. University of California Press. Berkeley, CA

Southeast Exotic Pest Plant Council Invasive Plant Manual - Water Hyacinth
Southeast Exotic Pest Plant Council.


Pacific Island Ecosystems at Risk (PIER) - Eichhornia crassipes
USDA. FS. Institute of Pacific Islands Forestry.

Invasive Plant Atlas of New England (IPANE) - Common water-hyacinth, floating water-hyacinth
University of Georgia. Center for Invasive Species and Ecosystem Health.

Invasive Plant Atlas of the MidSouth - Common Waterhyacinth
Mississippi State University. Geosystems Research Institute.

Invasive Plant Atlas of the United States - Water Hyacinth
University of Georgia. Center for Invasive Species and Ecosystem Health.

Texas Invasives Database - Eichhornia crassipes

The Quiet Invasion: A Guide to Invasive Species of the Galveston Bay Area - Common Water Hyacinth
Texas Commission on Environmental Quality, Galveston Bay Estuary Program; Houston Advanced Research Center (HARC).

Invasive Species Compendium - Eichhornia crassipes
CAB International.

Plantwise Technical Factsheet - Water Hyacinth (Eichhornia crassipes)
CABI. Plantwise Knowledge Bank.

Global Invasive Species Database - Eichhornia crassipes (aquatic plant)
IUCN. Species Survival Commission. Invasive Species Specialist Group.

Invaders Factsheet: Water Hyacinth
Ontario's Invading Species Awareness Program (Canada).

Federal Government

Nonindigenous Aquatic Species Database: Fact Sheet - Floating Waterhyacinth
DOI. USGS. Wetland and Aquatic Research Center.
Provides distribution maps and collection information (State and County).

Indian River Lagoon Species Inventory - Eichhornia crassipes
Smithsonian Institution. Smithsonian Marine Station at Fort Pierce.

U.S. National Plant Germplasm System - Eichhornia crassipes
USDA. ARS. National Genetic Resources Program. GRIN-Global.

PLANTS Database - Common Water Hyacinth
USDA. NRCS. National Plant Data Center.

International Government

Weeds in Australia - Water Hyacinth (Eichhornia crassipes)
Australian Government. Department of the Environment and Energy.

Designated Weed of National Significance

NSW WeedWise: Water hyacinth
New South Wales Department of Primary Industries (Australia).

Invasive Plants: Restricted Invasive Plants - Water Hyacinth
Queensland Business and Industry Portal (Australia).

State Government

Weed Alerts: Water Hyacinth
Florida Fish and Wildlife Conservation Commission.

Aquatic Invasive Species: Water Hyacinth Anchored & Floating (Mar 2005; PDF | 298 KB)
Indiana Department of Natural Resources.
See also: Invasive Species for exotic animal and plant pests invading Indiana, causing economic and visual damage

Freshwater Invasive Species in Rhode Island: Water Hyacinth (Dec 2010; PDF | 863 KB)
Rhode Island Department of Environmental Management. Office of Water Resources.
See also: Aquatic Invasive Plants for species of concern

Water Hyacinth
Wisconsin Department of Natural Resources.


Plant Profile: Eichhornia crassipes
University of Florida. IFAS. Center for Aquatic and Invasive Plants.

Introduced Species Summary Project - Water Hyacinth
Columbia University. Center for Environmental Research and Conservation.

AQUAPLANT - Water Hyacinth
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.


Integrated Taxonomic Information System. Eichhornia crassipes. [Accessed Sep 10, 2014].

Toft, J.D., C.A Simenstad, J.R. Cordell, and L.F. Grimaldo. 2003. The effects of introduced water hyacinth on habitat structure, invertebrate assemblages, and fish diets. Estuaries 26(3):746-758.

Zhang, Y., D. Zhang, and S.C. Barrett. 2010. Genetic uniformity characterizes the invasive spread of water hyacinth (Eichhornia crassipes), a clonal aquatic plant. Molecular Ecology 19(9):1774-1786.

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Last Modified: Jul 21, 2018
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