Council or Task Force
Species of Concern Fact Sheet: Hydrilla
Aquatic Nuisance Species Task Force.
Invasive Plants of California's Wildlands - Hydrilla verticillata
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 - Hydrilla
Southeast Exotic Pest Plant Council.
Priority Species: Hydrilla
Washington State Recreation and Conservation Office. Washington Invasive Species Council.
Fact Sheet: Hydrilla (Apr 2016; PDF | 496 KB)
Alberta Invasive Species Council (Canada).
See also: Fact Sheets for more information about individual invasive species, including those listed as "Prohibited Noxious" and "Noxious" under the Alberta Weed Control Act
Federal Noxious Weed Disseminules of the U.S. - Fact Sheet: Hydrilla verticillata
USDA. APHIS. PPQ. Center for Plant Health Science and Technology; California Department of Food and Agriculture.
Pacific Island Ecosystems at Risk (PIER) - Hydrilla verticillata
Institute of Pacific Islands Forestry.
Alaska Exotic Plants Information Clearinghouse (AKEPIC): Species Biography - Hydrilla (Feb 7, 2011; PDF | 113 KB)
University of Alaska - Anchorage. Alaska Center for Conservation Science.
See also: Non-Native Plant Species List for additional factsheets (species biographies) and species risk assessment reports of non-native species present in Alaska and also non-native species currently not recorded in Alaska (potential invasives).
Invasive Plant Atlas of New England (IPANE) - Hydrilla
University of Georgia. Center for Invasive Species and Ecosystem Health.
Invasive Plant Atlas of the MidSouth - Hydrilla
Mississippi State University. Geosystems Research Institute.
Invasive Plant Atlas of the United States - Hydrilla
University of Georgia. Center for Invasive
Species and Ecosystem Health.
Fact Sheet: Hydrilla
Massachusetts Introduced Pests Outreach Project.
New York Invasive Species Information - Hydrilla
New York Invasive Species Clearinghouse.
NEANS Panel Online Guide - Hydrilla
Northeast Aquatic Nuisance Species Panel.
Texas Invasives Database - Hydrilla verticillata
The Quiet Invasion: A Guide to Invasive Species of the Galveston Bay Area - Hydrilla, Waterthyme, Florida Elodea
Texas Commission on Environmental Quality, Galveston Bay Estuary Program; Houston Advanced Research Center (HARC).
Invasive Species Compendium - Hydrilla verticillata
Plantwise Technical Factsheet - Hydrilla (Hydrilla verticillata)
CABI. Plantwise Knowledge Bank.
Global Invasive Species Database - Hydrilla verticillata (aquatic plant)
IUCN. Species Survival Commission. Invasive Species Specialist Group.
Invaders Factsheet: Hydrilla
Ontario's Invading Species Awareness Program (Canada).
U.S. National Plant Germplasm System - Hydrilla verticillata
USDA. ARS. National Genetic Resources Program. GRIN-Global.
PLANTS Database - Hydrilla
National Plant Data Center.
Nonindigenous Aquatic Species Database: Fact Sheet - Hydrilla
DOI. USGS. Wetland and Aquatic Research Center.
Provides distribution maps and collection information (State
Indian River Lagoon Species Inventory - Hydrilla verticillata
Smithsonian Institution. Smithsonian Marine Station at Fort Pierce.
National Exotic Marine and Estuarine Species Information System (NEMESIS): Chesapeake Bay Introduced Species Database - Hydrilla verticillata
Smithsonian Institution. Smithsonian Environmental Research Center. Marine Invasions Research Lab.
Weeds in Australia -
Australian Government. Department of the Environment and Energy.
Encycloweedia: Data Sheet - Hydrilla, Egeria, and Elodea
California Department of Food and Agriculture.
See also: Included on California's noxious weed list; see Encycloweedia: Program Details for additional resources
Noxious Weed Species - Hydrilla
Colorado Department of Agriculture. Conservation Services Division. Noxious Weed Program.
Weed Alerts: Hydrilla
Florida Fish and Wildlife Conservation
Invasive Plants in Pennsylvania: Hydrilla (PDF | 114 KB)
Pennsylvania Department of Conservation and Natural Resources.
See also: Invasive Plant Fact Sheets for plant species (trees, shrubs, vines, herbs and aquatic plants) that have impacted the state's natural lands
Field Guide: Invasive - Hydrilla
Missouri Department of Conservation.
See also: Problem Plant Control (scroll to Invasive Plants section) for more information to help you identify and control most common invasive plants in Missouri
A Noxious Weed: Hydrilla
Washington State Noxious Weed Control Board.
Plant Profile: Hydrilla Verticillata
University of Florida. IFAS. Center for
Aquatic and Invasive Plants.
Maine Invasive Plants Bulletin: Hydrilla
University of Maine. Cooperative Extension.
See also: Maine Invasive Plants & Entire Series for entire series of 22 fact sheets and invasive plants brochure (available in HTML/PDF or for purchase)
Invasive Plant Fact Sheet - Hydrilla
(Nov 2011; PDF | 86 KB)
University of Pennsylvania. The Pennsylvania Flora Project of Morris Arboretum.
See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania
Factsheet: Hydrilla (PDF | 416 KB)
Pennsylvania State University. Pennsylvania Sea Grant.
See also: Aquatic Invasive Species: Resources for additional species information
Invasive Species Fact Sheets - Hydrilla
University of Wisconsin Sea Grant Institute.
Noxious Weed Information - Hydrilla
Colorado Weed Management Association.
Field Guide to Aquatic Invaders and Their Native
Look Alikes - Hydrilla
Lake Stewards of Maine.
Formerly known as the Maine Volunteer Lake Monitoring Program.