Pistia stratiotes
Pistia stratiotes
(water lettuce)
Plants
Cryptogenic
Collection Info
Point Map
Species Profile
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Impacts

15 results for Pistia stratiotes (water lettuce)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1834235 PAChester[No locality description provided]2018 02040205 Brandywine-Christina 
1652507 PAChesterKardon Park, East Caln Township2018 02040205 Brandywine-Christinaunknown
1886529 PACrawfordConneaut Lake2025 05010004 French 
1886531 PADauphinSusquehanna River, near mouth of Swatara Creek, Middletown Access Area, 1 mile SSW of Middletown town square1993 02050305 Lower Susquehanna-Swatara 
1652504 PAErieArea commonly referred to as low bridge in Presque Isle State Park, Millcreek Township2020 04260000 Lake Erieunknown
1838453 PAErieLake Erie,Lake Erie (ERIE)2020 04260000 Lake Erie 
1838552 PAErieLake Erie,Lake Erie (ERIE)2020 04260000 Lake Erie 
1886532 PALebanonN shoreline of Shuey Lake, Fort Indiantown Gap Military Reservation, 0.9 mile WNW of Bordnersville1994 02050305 Lower Susquehanna-Swatara 
1826357 PALehigh[No locality description provided]2016 02040106 Lehigh 
1652506 PALehighCanal Park, Allentown2016 02040106 Lehighunknown
1401071 PALehighLehigh canal, east of the Main street bridge2016 02040106 Lehighunknown
1826441 PAMontgomery[No locality description provided]2016 02040203 Schuylkill 
1654552 PANorthumberland[West Branch Susquehanna River, west shoreline at Lewisburg]2020 02050206 Lower West Branch Susquehannaunknown
1886530 PAVenangopond near Allegheny River at PennWest Clarion-Venango2025 05010003 Middle Allegheny-Tionesta 
1654581 PAWestmoreland[Northmoreland Lake]2020 05010008 Kiskiminetasunknown

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.

Disclaimer:

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 [2/21/2026].

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