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Eurasian watermilfoil (Not seen 0n Gull Chain yet)

(Myriophyllum spicatum)

From the Minnesota DNR website:

Eurasian watermilfoil was accidentally introduced to North America from Europe. Spread westward into inland lakes primarily by boats and also by waterbirds, it reached Midwestern states between the 1950s and 1980s.

In nutrient-rich lakes it can form thick underwater stands of tangled stems and vast mats of vegetation at the water's surface. In shallow areas the plant can interfere with water recreation such as boating, fishing, and swimming. The plant's floating canopy can also crowd out important native water plants.


Eurasian watermilfoil infestation in Minnesota.


More information:

Minnesota Sea Grant (U of M)

Eurasian watermilfoil typically has 12 to 21 pairs of leaflets. The native northern watermilfoil, with which it is often confused, usually has 5 to 9 pairs. Drawing courtesy Bell Museum of Natural History.

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