GLANSIS

Myriophyllum spicatum

Eurasian watermilfoil

Collection Information for Myriophyllum spicatum

Results limited to HUC #04030105.
To see the collection list for the entire Great Lakes region, click here.
To see the collection list for the entire United States, click here.
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Specimen ID	State	County	Locality	Year	HUC Number	Drainage Name	Status
231097	WI	Marinette	High Falls Reservoir [Flowage]	1998	04030105	Peshtigo	established
231098	WI	Marinette	Lake Mary	1998	04030105	Peshtigo	established
231099	WI	Marinette	Peshtigo Flowage	1998	04030105	Peshtigo	established
231100	WI	Marinette	Thunder Lake	1998	04030105	Peshtigo	established
253366	WI	Marinette	Caldron Falls Reservoir	2003	04030105	Peshtigo	collected
253386	WI	Marinette	Little Newton Lake	2007	04030105	Peshtigo	collected
253389	WI	Marinette	Montana Lake	2002	04030105	Peshtigo	collected
253393	WI	Marinette	Peshtigo River	1995	04030105	Peshtigo	collected
253394	WI	Marinette	Sandstone Flowage	1995	04030105	Peshtigo	collected
253395	WI	Marinette	Twin Bessies (Fawn Lk)	2002	04030105	Peshtigo	collected
253411	WI	Oconto	Caldron Falls Reservoir	2003	04030105	Peshtigo	collected
1423304	WI	Marinette	Twin Bessies (Fawn Lk)	2002	04030105	Peshtigo	established
1423310	WI	Oconto	Underwood Lake	2002	04030105	Peshtigo	established
1424038	WI	Marinette	High Falls Reservoir	1995	04030105	Peshtigo	established
1424130	WI	Marinette	Johnson Falls Flowage	1995	04030105	Peshtigo	established
1425388	WI	Marinette	Little Newton Lake	2007	04030105	Peshtigo	established
1427565	WI	Forest	Silver Lake	2010	04030105	Peshtigo	established
1427713	WI	Marinette	Sandstone Flowage	1995	04030105	Peshtigo	established
1612003	WI	Marinette	[No locality description provided]	2018	04030105	Peshtigo	established
1612004	WI	Marinette	[No locality description provided]	2018	04030105	Peshtigo	established
1612164	WI	Marinette	[No locality description provided]	2018	04030105	Peshtigo	established
253417	WI	Marinette	Montana Lake	2002	04030105	Peshtigo	collected
253419	WI	Marinette	Peshtigo Flowage	1995	04030105	Peshtigo	collected
253421	WI	Oconto	Underwood Lake	2002	04030105	Peshtigo	collected
1423063	WI	Marinette	Thunder Lake	1991	04030105	Peshtigo	established
1423192	WI	Marinette	Bagley Flowage	2008	04030105	Peshtigo	established
1425178	WI	Marinette	Caldron Falls Reservoir	2003	04030105	Peshtigo	established
1426271	WI	Marinette	Montana Lake	2002	04030105	Peshtigo	established
1426517	WI	Marinette	Mary Lake	1993	04030105	Peshtigo	established
1426820	WI	Marinette	Peshtigo Flowage	1995	04030105	Peshtigo	established
1426937	WI	Forest	Peshtigo Lake	2014	04030105	Peshtigo	established
1612232	WI	Marinette	[No locality description provided]	2018	04030105	Peshtigo	established
273055	WI	Marinette	Bagley Flowage	2008	04030105	Peshtigo	collected
1612238	WI	Marinette	[No locality description provided]	2018	04030105	Peshtigo	established
1612246	WI	Marinette	[No locality description provided]	2018	04030105	Peshtigo	established
1612262	WI	Marinette	[No locality description provided]	2018	04030105	Peshtigo	established
1612249	WI	Marinette	[No locality description provided]	2018	04030105	Peshtigo	established
1884134	WI	Oconto	Rice Bay, Liegh Flowage	2023	04030105	Peshtigo	established
1884132	WI	Marinette	Sandstone Reservoir	2019	04030105	Peshtigo	established
1885324	WI	Marinette	Big Newton Lake	2020	04030105	Peshtigo	established

Citation for this information:
U.S. Geological Survey, 2025, Myriophyllum spicatum: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/15/2025