Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1671003
| OR | Clackamas | [No locality description provided] | 2017 |
17090007
| Middle Willamette | |
853388
| OR | Clackamas | Oregon City | 2013 |
17090007
| Middle Willamette | established |
1671340
| OR | Marion | [No locality description provided] | 2017 |
17090007
| Middle Willamette | |
1672968
| OR | Marion | [No locality description provided] | 2019 |
17090007
| Middle Willamette | |
852904
| OR | Marion | Salem East | 1994 |
17090007
| Middle Willamette | established |
853430
| OR | Marion | Salem East | 1994 |
17090007
| Middle Willamette | established |
853154
| OR | Marion | Salem West | 2000 |
17090007
| Middle Willamette | established |
243664
| OR | Marion | Salem; ditch along Cordon Road near its junction with Herrin Road. | 1994 |
17090007
| Middle Willamette | established |