Fact sheet describes the aquatic weed's biology, distribution, ecological impact, and economic effects. Includes photo.

California Exotic Plant Pest Council discusses the state's efforts to monitor and control the noxious aquatic weed.

Article discusses the physical, reproductive, and adaptive features which make the Asian plant an efficient invader of freshwater ecosystems.

Learn how to identify the noxious water weed, find details about its biology and spread, and explore control methods. Includes illustrations.

Nat'l Agricultural Pest Info Service offers a fact sheet and distribution map for the water weed and provides links to other hydrilla resources.

Read about the invasive weed's introduction and establishment in Florida and find details on its ecological effects and management.

Fact sheet from Pacific Island Ecosystems at Risk describes the water weed and discusses its biology, habitat, and control.

Read a description of the invasive aquatic plant, explore its biology and ecological effects, and find management guidelines.