| Specimen ID | 274818 |
| Group | Plants |
| Genus | Myriophyllum |
| Species | heterophyllum |
| Common Name | variable-leaf watermilfoil |
| State | CT |
| County | New London |
| Locality | Black Hall Pond,Old Lyme, CT. Growing on sand in 1 m of water |
| Mapping Accuracy | Accurate |
| HUC8 Name | Outlet Connecticut River |
| HUC8 Number | 01080205 |
| HUC10 Name | Eightmile River-Connecticut River |
| HUC10 Number | 0108020509 |
| HUC12 Name | Joshua Creek-Connecticut River |
| HUC12 Number | 010802050905 |
| Map | |
| Collection Day | 18 |
| Collection Month | 8 |
| Collection Year | 2005 |
| Year Accuracy | Actual |
| Potential Pathway | dispersed |
| Status | collected |
| Reference 1 |
| Ref. Number: | 19670 |
| Author: | Gibbons, J. |
| Date: | 2011 |
| Title: | The Connecticut Agricultural Extension Station Aquatic Plant Survey Program. |
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| Record Type | Literature |
| Freshwater/Marine | Freshwater |
