| Specimen ID | 234880 |
| Group | Plants |
| Genus | Myriophyllum |
| Species | heterophyllum |
| Common Name | variable-leaf watermilfoil |
| State | MA |
| County | Middlesex |
| Locality | Lake Whitehall (Reservoir), Hopkinton town |
| Mapping Accuracy | Accurate |
| HUC8 Name | Concord River |
| HUC8 Number | 01070005 |
| HUC10 Name | Sudbury River |
| HUC10 Number | 0107000501 |
| HUC12 Name | Headwaters Sudbury River |
| HUC12 Number | 010700050101 |
| Map | |
| Collection Day | 12 |
| Collection Month | 9 |
| Collection Year | 1971 |
| Year Accuracy | Actual |
| Potential Pathway | planted ornamental | dispersed | hitch hiker on small watercraft |
| Status | established |
| Reference 1 |
| Ref. Number: | 16042 |
| Author: | Invasive Plant Atlas of New England (IPANE). |
| Date: | 2007 |
| Publisher: | University of Conneticut, USDA |
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| Record Type | Literature |
| Freshwater/Marine | Freshwater |
