Marsilea quadrifolia
Marsilea quadrifolia
(European water-clover)
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21 results for Marsilea quadrifolia (European water-clover)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1397620 MAMiddlesexEdges of the Sudbury River from Sherman's Bridge Road, Wayland, to Lowell Road, Concord. Concord River edges from Lowell Road, Concord, to about the Concord Impoundments at 42.465 / -71.358.2014 01070005 Concord Riverestablished
1562205 MIOakland[No locality description provided]2014 04090003 Clintonestablished
1562207 MIOakland[No locality description provided]2014 04090003 Clintonestablished
1562208 MIOakland[No locality description provided]2014 04090003 Clintonestablished
1562225 MIOakland[No locality description provided]2014 04090003 Clintonestablished
1562203 MIOakland[No locality description provided]2014 04090003 Clintonestablished
1562230 MIOakland[No locality description provided]2014 04090003 Clintonestablished
1562234 MIOakland[No locality description provided]2014 04090003 Clintonestablished
1561284 MIWashtenaw[No locality description provided]2014 04100013 Huronestablished
1561285 MIWashtenaw[No locality description provided]2014 04100013 Huronestablished
1561287 MIWashtenaw[No locality description provided]2014 04100013 Huronestablished
1813630 NYTompkins[No locality description provided]2014 04140201 Seneca 
866988 NYTompkins[No locality provided]2014 04140201 Senecaunknown
866955 NYTompkins[No locality provided]2014 04140201 Senecaunknown
866956 NYTompkins[No locality provided]2014 04140201 Senecaunknown
867026 NYTompkinsCayuga Lake2014 04140201 Senecaunknown
1813675 NYTompkinsCayuga Lake2014 04140201 Seneca 
1812080 NYTompkinsFall Creek2014 04140201 Seneca 
1812081 NYTompkinsFall Creek2014 04140201 Seneca 
888262 NYWestchesterTeatown Lake2014 02030101 Lower Hudsonestablished
1815235 NYWestchesterTeatown Lake2014 02030101 Lower Hudson 

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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/22/2026].

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