| Specimen ID | 1715821 |
| Group | Plants |
| Genus | Hydrilla |
| Species | verticillata |
| Subspecies | lithuanica |
| Common Name | northern hydrilla |
| State | MA |
| County | Hampden |
| Locality | Congamond Lake, 18 m from the launch |
| Mapping Accuracy | Accurate |
| HUC8 Name | Westfield River |
| HUC8 Number | 01080206 |
| HUC10 Name | Outlet Westfield River |
| HUC10 Number | 0108020603 |
| HUC12 Name | Great Brook |
| HUC12 Number | 010802060304 |
| Map
NAS ARM
| |
| Collection Day | 12 |
| Collection Month | 10 |
| Collection Year | 2023 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | established |
| Comments | DNA verified as clade C |
| Record Type | Personal communication |
| Earliest Record | drainage |
| Verifier | Connecticut Office of Aquatic Invasive Species |
