Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
(European frogbit)
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8 results for Hydrocharis morsus-ranae (European frogbit)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1736184 WIBrownBrown County2023 04030100 Northwestern Lake Michigan 
1736185 WIDoorDoor County2023 04190000 Lake Michigan 
1700651 WIMarinette[No locality description provided]2022 04030105 Peshtigo 
1658379 WIMarinettealong the coast from Oconto to Marinette2021 04030108 Menomineeestablished
1736917 WIMarinettein ditch along County Road Y, just north of Hale School Road2024 04030105 Peshtigo 
1699240 WIOconto[No locality description provided]2021 04030105 Peshtigo 
1680213 WIOcontoGreen Bay2021 04190000 Lake Michiganestablished
1658377 WIOcontounnamed stream and throughout the adjacent drainage ditches just north of the City of Oconto [wbic 497800]2021 04030105 Peshtigoestablished

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/30/2025].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.