| Specimen ID | 1657560 |
| Group | Plants |
| Genus | Myriophyllum |
| Species | spicatum |
| Common Name | Eurasian watermilfoil |
| State | CT |
| County | Tolland |
| Locality | Mansfield Hollow Lake |
| Mapping Accuracy | Accurate |
| HUC8 Name | Shetucket River |
| HUC8 Number | 01100002 |
| HUC10 Name | Natchaug River |
| HUC10 Number | 0110000202 |
| HUC12 Name | Sawmill Brook-Natchaug River |
| HUC12 Number | 011000020206 |
| Map | |
| Collection Day | 2 |
| Collection Month | 6 |
| Collection Year | 2021 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Comments | Multiple locations in Mansfield Hollow Lake. I observed large patches of it anchored to the lake bottom both upstream and downstream from the culvert/causeway. Countless plant segments observed floating loose immediately downstream from the culvert following a heavy downpour, suggesting that there are extensive patches upriver. |
| Record Type | NAS sighting report |
| Verifier | Ian Pfingsten |
| Freshwater/Marine | Freshwater |
| Number Collected | 1000 |
| Photo | |
