| Specimen ID | 238278 |
| Group | Plants |
| Genus | Myriophyllum |
| Species | spicatum |
| Common Name | Eurasian watermilfoil |
| State | IA |
| County | Bremer |
| Locality | Sweet Marsh |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Wapsipinicon |
| HUC8 Number | 07080102 |
| HUC10 Name | East Branch Wapsipinicon River |
| HUC10 Number | 0708010203 |
| HUC12 Name | Lower East Branch Wapsipinicon River |
| HUC12 Number | 070801020303 |
| Map | |
| Collection Year | 1997 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | eradicated |
| Comments | Multiple chemical and physical treatments since 1997; EWM observed most years in reservoir and Martens Lake channel. |
| Record Type | Personal communication |
| Earliest Record | locale |
| Freshwater/Marine | Freshwater |
