| Specimen ID | 1670473 |
| Group | Plants |
| Genus | Pistia |
| Species | stratiotes |
| Common Name | water lettuce |
| State | IL |
| County | Cook |
| Locality | South of E Lake Ave near terminus of Timberline Drive in Blue Star Forest Preserve |
| Mapping Accuracy | Accurate |
| HUC8 Name | Chicago |
| HUC8 Number | 07120003 |
| HUC10 Name | North Branch Chicago River-Chicago Sanitary and Ship Canal |
| HUC10 Number | 0712000301 |
| HUC12 Name | Middle North Branch Chicago River |
| HUC12 Number | 071200030105 |
| Map | |
| Collection Day | 21 |
| Collection Month | 10 |
| Collection Year | 2021 |
| Year Accuracy | Actual |
| Potential Pathway | planted ornamental | dispersed |
| Status | unknown |
| Record Type | NAS sighting report |
| Verifier | Ian Pfingsten |
| Freshwater/Marine | Freshwater |
| Number Collected | 200 |
| Photo | |
