| Specimen ID | 1247742 |
| Group | Plants |
| Genus | Myriophyllum |
| Species | heterophyllum |
| Common Name | variable-leaf watermilfoil |
| State | NH |
| County | Rockingham |
| Locality | Beaver Lake, Derry |
| Mapping Accuracy | Accurate |
| HUC8 Name | Merrimack River |
| HUC8 Number | 01070006 |
| HUC10 Name | Stony Brook-Merrimack River |
| HUC10 Number | 0107000612 |
| HUC12 Name | Upper Beaver Brook |
| HUC12 Number | 010700061203 |
| Map | |
| Collection Day | 3 |
| Collection Month | 10 |
| Collection Year | 2014 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Reference 1 |
| Ref. Number: | 28625 |
| Author: | New Hampshire Department of Environmental Services. |
| Date: | 2016 |
| Title: | Long-term variable milfoil management plan |
| Publisher: | Beaver Lake Improvement Association |
| Pages: | 34 pp |
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| Comments | Fragments collected by concerned lake residents trained to identify aquatic invasive plants. Found in 2015 in lake outlet wetland. "Both visual examination and DNA analysis showed that the plant was variable milfoil." |
| Record Type | Literature |
| Earliest Record | drainage |
| Verifier | NH DES |
| Freshwater/Marine | Freshwater |
| Size | 133.6 acres |
| Specimen Impact | Boat traffic impediment |
