Pistia stratiotes
Pistia stratiotes
(water lettuce)
Plants
Cryptogenic
Collection Info
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Impacts

2 results for Pistia stratiotes (water lettuce)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1886531 PADauphinSusquehanna River, near mouth of Swatara Creek, Middletown Access Area, 1 mile SSW of Middletown town square1993 02050305 Lower Susquehanna-Swatara 
1886532 PALebanonN shoreline of Shuey Lake, Fort Indiantown Gap Military Reservation, 0.9 mile WNW of Bordnersville1994 02050305 Lower Susquehanna-Swatara 

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 [2/22/2026].

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