Council or Task Force
Aquatic Nuisance Species Task Force.
Invasive Plants of California's Wildlands - Hydrilla verticillata
California Invasive Plant Council.
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.
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 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.
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.
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.
Weeds in Australia -
Japanese Honeysuckle (Lonicera japonica)
Australian Government. Department of the Environment and Energy.
Encycloweedia: Data Sheet - Hydrilla, Egeria, and Elodea
California Department of Food and Agriculture.
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 Alert (PDF
| 739 KB)
Florida Fish and Wildlife Conservation
Invasive Plants in Pennsylvania: Hydrilla (PDF | 114 KB)
Pennsylvania Department of Conservation and Natural Resources.
See also: Invasive Plants fact sheets (scroll to view) 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
Non-Native Freshwater Plants - Hydrilla
Washington State Department of Ecology. Water Quality Program.
A Noxious Weed: Hydrilla
Washington State Noxious Weed Control Board.
Plant Profile: Hydrilla Verticillata
University of Florida. IFAS. Center for
Aquatic and Invasive Plants.
Aquatic Invader Toolkit - Hydrilla (PDF | 673 KB)
Illinois-Indiana Sea Grant.
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 Atlas of the MidSouth - Hydrilla
Mississippi State University. GeoResources Institute.
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
Fact Sheet: Hydrilla (PDF | 259 KB)
Pennsylvania State University. Pennsylvania Sea Grant.
Invasive Species Fact Sheets - Hydrilla
University of Wisconsin Sea Grant Institute.
Noxious Weed Information - Hydrilla (A List)
Colorado Weed Management Association.
Field Guide to Aquatic Invaders and Their Native
Look Alikes - Hydrilla
Maine Volunteer Lake Monitoring Program.