Eurasian Watermilfoil


Eurasian Watermilfoil (Myriophullum spicatum) Watermilfoil family

Eurasian watermilfoil is a submersed aquatic plant, with stems 3 feet long or more. Leaves are whorled, highly dissected, and composed of 28-48 thread-like divisions.Spikes emerge above the water, and flowers are borne in the axis of bracts. Plant forms dense mats that grow over the surface of water.

Found in fresh to salty water of ponds, lakes, slow-mowing streams, reservoirs, estuaries, and canals.

Not known to occur in Alaska but could readily be spread into Kenai Peninsula by float planes. This invasive alters ecosystems and makes poor habitat for waterfowl, fish, and other wildlife. Look for this invasive in wetlands.

More information


U.S. Forest Service National Park Service UAF Cooperative Extension Service Homer Soil and Water Conservation District Kenai Watershed Forum U.S. Fish and Wildlife Service