Specimen Information

Pistia stratiotes
Pistia stratiotes
(water lettuce)

Specimen ID1247810
Common Namewater lettuce
CountyLa Crosse
LocalityLake Onalaska
Mapping AccuracyAccurate
HUC8 NameLa Crosse-Pine
HUC8 Number07040006
HUC10 NameHalfway Creek-Mississippi River
HUC10 Number0704000601
HUC12 NameLake Onalaska-Mississippi River
HUC12 Number070400060103
Collection Day6
Collection Month10
Collection Year2015
Year AccuracyActual
Potential Pathwayreleased | planted ornamental
Reference 1
Ref. Number:27923
Author:Wisconsin Department of Natural Resources (WI DNR)
Title:Aquatic invasive species by waterbody
Publisher:Wisconsin Department of Natural Resources
Reference 2
Ref. Number:28723
Author:Caven, S., and K. Niemec.
Title:Distribution Map of the 2015 Brice Prairie Water Lettuce Infestation
CommentsThere are beds of water lettuce scattered throughout Lake Onalaska, especially downstream of USFWS's Upper Brice Prairie Landing. Caven and USFWS are going to map the infestation 10/9/15. Control days will take place in October. WI DNR sighting
Record TypeLiterature
Earliest Recordlocale
VerifierWI DNR
SizeMany beds


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. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/17/2022].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.