| Specimen ID | 263161 |
| Group | Plants |
| Genus | Myriophyllum |
| Species | spicatum |
| Common Name | Eurasian watermilfoil |
| State | WA |
| County | Franklin |
| Locality | Columbia River, Hanford Reach, marsh SE across channel from Savage Island |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Columbia-Priest Rapids |
| HUC8 Number | 17020016 |
| HUC10 Name | Gable Butte-Columbia River |
| HUC10 Number | 1702001602 |
| HUC12 Name | Savage Island-Columbia River |
| HUC12 Number | 170200160206 |
| Map | |
| Collection Month | 8 |
| Collection Year | 2009 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 18831 |
| Author: | Anonymous |
| Date: | 2009 |
| Title: | Water Safety Experts find answers to Milfoil Mystery. |
| Publisher: | KNDO/KNDUcom, Yakima, Wa. |
| Volume: | 2009 |
| Issue: | August 26 |
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| Record Type | Literature |
| Freshwater/Marine | Freshwater |
| Specimen Impact | two drownings associated with milfoil on the Columbia River this year |
