| Specimen ID | 1320978 |
| Group | Plants |
| Genus | Potamogeton |
| Species | crispus |
| Common Name | curly-leaf pondweed |
| State | MD |
| County | Montgomery |
| Locality | In the C. and O. Canal across from Herzog Island |
| Mapping Accuracy | Accurate |
| HUC8 Name | Middle Potomac-Catoctin |
| HUC8 Number | 02070008 |
| HUC10 Name | Difficult Run-Potomac River |
| HUC10 Number | 0207000810 |
| HUC12 Name | Nichols Run-Potomac River |
| HUC12 Number | 020700081005 |
| Map | |
| Collection Day | 9 |
| Collection Month | 5 |
| Collection Year | 1936 |
| 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 | MARY 21078 |
| Record Type | Specimen |
| Disposal | Univ. of Maryland Norton-Brown Herbarium |
| Museum Cat Number | MARY 21078 |
| Freshwater/Marine | Freshwater |
| Photo | |
