Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1668238
| DC | District of Columbia | Department of Agriculture grounds | 1883 |
02070010
| Middle Potomac-Anacostia-Occoquan | unknown |
1668985
| DC | District of Columbia | Department of Agriculture grounds | 1891 |
02070010
| Middle Potomac-Anacostia-Occoquan | unknown |
1668642
| DC | District of Columbia | Washington | 1885 |
02070010
| Middle Potomac-Anacostia-Occoquan | unknown |
1669009
| DC | District of Columbia | Washington | 1896 |
02070010
| Middle Potomac-Anacostia-Occoquan | unknown |