Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1675160
| DC | District of Columbia | [No locality description provided] | 2020 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
280450
| DC | District of Columbia | Potomac River, channel along west side of Roosevelt Island above walk bridge, E side of Rosslyn. | 2010 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
158319
| DC | District of Columbia | Rock Creek Park | 1999 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1677686
| MD | Montgomery | [No locality description provided] | 2017 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
1677924
| MD | Montgomery | [No locality description provided] | 2018 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
1679936
| MD | Montgomery | [No locality description provided] | 2021 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
1679937
| MD | Montgomery | [No locality description provided] | 2021 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
1655053
| MD | Montgomery | Montgomery, Maryland, United States | 2020 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1672070
| MD | Prince George's | [No locality description provided] | 2018 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
153239
| VA | | many areas in middle Potomac from Washington DC, westward in drainage | 1994 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1705878
| VA | Fauquier | [No locality description provided] | 2022 |
02070010
| Middle Potomac-Anacostia-Occoquan | |