| Specimen ID | 254634 |
| Group | Plants |
| Genus | Myriophyllum |
| Species | heterophyllum |
| Common Name | variable-leaf watermilfoil |
| State | NH |
| County | Merrimack |
| Locality | Hopkinton Lake/Dam, Hopkinton |
| Mapping Accuracy | Accurate |
| HUC8 Name | Contoocook River |
| HUC8 Number | 01070003 |
| HUC10 Name | Middle Contoocook River |
| HUC10 Number | 0107000303 |
| HUC12 Name | Hopkinton Lake-Contoocook River |
| HUC12 Number | 010700030304 |
| Map | |
| Collection Year | 2000 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 18127 |
| Author: | New Hampshire Department of Environmental Services. |
| Date: | 2015 |
| Title: | Exotic Aquatic Plant Infestations in New Hampshire |
| Publisher: | New Hampshire Department of Environmental Services. |
| Volume: | 2008 |
| Issue: | March 20 |
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| Record Type | Literature |
| Earliest Record | locale |
| Freshwater/Marine | Freshwater |
