Contact information
For information on Lakes in Wisconsin, contact:
DNR SWIMS
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: https://dnr.wisconsin.gov/topic/Invasives/report.html. 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)CountyYear First FoundDetails
Ornamental water lilies (non-native Nymphaea sp.) (30)
Alpine LakeVerified245650Waushara2011 Details
Big LakeVerified345100Shawano2018 Details
Bohner LakeVerified750800Racine2018 Details
Boundary LakeVerified499000Marinette, Oconto2017 Details
Butternut LakeVerified2283300Ashland, Price2008 Details
Delavan LakeVerified793600Walworth2010 Details
Dowling LakeVerified2858300Douglas2014 Details
Echo LakeVerified and Vouchered1488400Lincoln2012 Details
Elkhart LakeVerified59300Sheboygan2012 Details
Falk LakeVerified2670900Burnett2018 Details
Green Lake - OWLVerified and Vouchered28100Washington2021 Details
Halfmoon LakeVerified988000Lincoln2012 Details
Halfmoon LakeVerified2762700Bayfield2011 Details
Krohns LakeVerified94700Kewaunee2006 Details
Lower NemahbinVerified and Vouchered827000Waukesha2022 Details
Middle LakeVerified702600Florence2006 Details
Nelson LakeVerified2704200Sawyer2005 Details
North LakeVerified and Vouchered703000Florence2012 Details
Pelican LakeVerified1579900Oneida2011 Details
Private pond Verified and Vouchered Door2019 Details
Redstone LakeVerified1280400Sauk2005 Details
Sapokesick LakeVerified340900Menominee2015 Details
Shawano Lake - Southside near park and rideNo Longer Observed322800Shawano2019 Details
Spider ChainVerified2436100Sawyer2012 Details
Springville PondVerified1402300Portage2011 Details
Star LakeVerified427900Oconto2016 Details
Surprise LakeVerified428100Oconto2016 Details
Tuttle LakeVerified108200Marquette2015 Details
White River FlowageVerified151500Waushara2015 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].