Eurasian Watermilfoil

Photo courtesy of J. Madsen

Scientific Name Myriophyllum spicatum L.
Common Name Eurasian watermilfoil
Family Haloragaceae (Watermilfoil)
Class Dicot
Description Mostly evergreen perennial; overwinters by root crown, aerial wind -pollinated flowers, spread by runners and autofragments
US Distribution Essentially all lower 48 states, except southern Florida
Worldwide Distribution Temperate portion of northern hemisphere, nuisance predominantly in North America (US and southern Canada); native to Armenia
Ecology Rooted submersed in 1 to 15 ft. depth
Economic Importance Major nuisance aquatic plant in US, southern Canada ($5M/yr in central New York)
Ecological Importance Major impact on US aquatic systems
Notes Tolerates moderate salinity, grows in lower estuary areas
This entry was posted in Aquatic Plants.