Contact information
For information on Lakes in Wisconsin, contact:
Division of Water
Bureau of Water Quality
Aquatic Invasive Species Contacts

Ornamental water lilies (non-native Nymphaea sp.)

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Total Locations: 30
Total Lakes and Rivers: 41 *

Disclaimer: Aquatic invasive species (AIS) records are assigned statuses of "verified", "observed", or "no longer observed" based on AIS Status Guidance. In general, "verified" populations are established and have been verified by a taxonomic expert. Populations with the "observed" status have not been verified by a taxonomic expert or do not have established populations. Populations with the "no longer observed" status include populations where a reproducing population did not establish. Our inventories are not necessarily exhaustive so it is important to report occurrences. To report new discoveries visit: See the Aquatic Invasive Species Guidance for information on how statuses are assigned. Personally identifiable information on data collection forms may be provided to requesters to the extent required by Wisconsin's Open Records Law [ss. 19.31-19.39, Wis. Stats.].

By County | By Waterbody | By Species | By Year | Open In Excel
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WaterbodyStatusWaterbody ID Code (WBIC)Year First FoundDetails
Ashland County (1)
Butternut LakeVerified22833002008 Details
Bayfield County (1)
Halfmoon LakeVerified27627002011 Details
Burnett County (1)
Falk LakeVerified26709002018 Details
Door County (1)
Private pond Verified and Vouchered 2019 Details
Douglas County (1)
Dowling LakeVerified28583002014 Details
Florence County (2)
Middle LakeVerified7026002006 Details
North LakeVerified and Vouchered7030002012 Details
Kewaunee County (1)
Krohns LakeVerified947002006 Details
Lincoln County (2)
Echo LakeVerified and Vouchered14884002012 Details
Halfmoon LakeVerified9880002012 Details
Marinette County (2)
Boundary LakeVerified4990002017 Details
Yankee LakeVerified4401002021 Details
Marquette County (1)
Tuttle LakeVerified1082002015 Details
Menominee County (1)
Sapokesick LakeVerified3409002015 Details
Oconto County (4)
Boundary LakeVerified4990002017 Details
Star LakeVerified4279002016 Details
Surprise LakeVerified4281002016 Details
Yankee LakeVerified4401002021 Details
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* Total Lakes and Rivers = total unique Waterbody ID Codes (WBICs). If a waterbody, such as a small pond not in the DNR 24 K Hydrolayer, doesn't have a WBIC, it isn't currently counted in the total.

** Purple Loosestrife - DNR has only a partial list of locations. For more extensive data, visit the Great Lakes Indian and Fish Wildlife Commission (GLIFWC) website [exit DNR].

** Fish species - This web page only has a partial list of locations. For more extensive data, visit the Wisconsin Department of Natural Resources Map of Distribution of WI Fish Species [exit DNR].