Eurasian Watermilfoil (Myriophyllum spicatum)
 
Where did it come from?
- Originates from Europe, Asia, and Northern Africa and was introduced into North America in the 1940’s.
Where can it be found in South Dakota?
- Currently found in Lake Sharpe.
What does it look like?
- They produce small red flowers on top of the water in mid-summer. They have about twice as many leaflet pairs(12-21)
compared to native watermilfoil(5-10).
Why are Eurasian Watermilfoil a problem?
- Forms dense stands of vegetation in the water column and thick mats at the surface, shading out native vegetation and reducing oxygen levels during decomposition. This dense vegetation also takes away from recreational activities.
How are Eurasian Watermilfoil spread?
- Reproduces by fragmentation, plant fragments easily transported in livewells, bilge water, and on boat trailers.
Check out
Aquatic Nuisance Species Prevention on ways to prevent
the spread of Aquatic Nuisance Species
Eurasian Watermilfoil links
Link to Evasive Species Info on
Eurasian Watermilfoil
USGS Eurasian Watermilfoil Fact Sheet and Distribution Map
Pictures of Eurasian Watermilfoil
South Dakota Eurasian Watermilfoil Distribution
Map
Click here to report Eurasian
Watermilfoil
|
|
Related Links
ANS Management in North America
What is
an Aquatic Nuisance Species?
Aquatic Nuisance Species
Prevention
SD ANS Watch List "The Terrible Ten"
SD Noxious Weed List
SD Invasive Species Laws and
Regulations
SD Cooperative Boat Wash
Program
SD Infested Waters List
South Dakota ANS
Management Plan
Report a New Aquatic Nuisance Species
Aquatic Nuisance Home |
