| Specimen ID | 1320973 |
| Group | Plants |
| Genus | Myriophyllum |
| Species | spicatum |
| Common Name | Eurasian watermilfoil |
| State | MD |
| County | Charles |
| Locality | Lagoon of Potomac River near base of Peninsula, near Prince Georges County line |
| Mapping Accuracy | Accurate |
| HUC8 Name | Middle Potomac-Anacostia-Occoquan |
| HUC8 Number | 02070010 |
| HUC10 Name | Cameron Run-Potomac River |
| HUC10 Number | 0207001003 |
| HUC12 Name | Little Hunting Creek-Potomac River |
| HUC12 Number | 020700100307 |
| Map | |
| Collection Day | 27 |
| Collection Month | 6 |
| Collection Year | 1984 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Reference 1 |
| Ref. Number: | 13276 |
| Author: | Neel, M. (director), J. Hall (curator), and N. Anderson. |
| Date: | 2014 |
| Title: | Norton-Brown Herbarium (MARY) |
| Publisher: | University of Maryland |
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| Comments | Incorrectly identified as M. aquaticum. MARY 55475 |
| Record Type | Specimen |
| Disposal | Univ. of Maryland Norton-Brown Herbarium |
| Museum Cat Number | MARY 55475 |
| Verifier | Ian Pfingsten |
| Freshwater/Marine | Freshwater |
| Photo | |
