Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1419120
| OR | Clackamas | Unnamed pond on private property | 2017 |
17090007
| Middle Willamette | established |
614619
| OR | Clackamas | Willamette River, below locks | 1998 |
17090007
| Middle Willamette | unknown |
1473596
| OR | Clackamas | Willamette River, near Goat Island | 2018 |
17090007
| Middle Willamette | established |
1418758
| OR | Marion | In Minto-Brown Island Park, just off the paved pedestrian trail, and then just off a small boardwalk that jets out into the pond/marsh here. | 2017 |
17090007
| Middle Willamette | established |
1418759
| OR | Marion | In Minto-Brown Island Park, just off the paved pedestrian trail, and then just off a small boardwalk that jets out into the pond/marsh here. | 2017 |
17090007
| Middle Willamette | established |
647814
| OR | Marion | Willamette River, in a side slough | 2014 |
17090007
| Middle Willamette | established |
862556
| OR | Marion | Willamette River, in a side slough | 2015 |
17090007
| Middle Willamette | established |
1321242
| OR | Marion | Willamette River, in a side slough | 2016 |
17090007
| Middle Willamette | established |
1613827
| OR | Marion | Willamette River, in a side slough | 2019 |
17090007
| Middle Willamette | established |
1655265
| OR | Marion | Willamette River, in a side slough | 2020 |
17090007
| Middle Willamette | established |
1695338
| OR | Marion | Willamette River, in a side slough | 2021 |
17090007
| Middle Willamette | established |
1736625
| OR | Marion | Willamette River, in a side slough | 2023 |
17090007
| Middle Willamette | |
1419119
| OR | Polk | Willamette River-small backwater off west bank | 2017 |
17090007
| Middle Willamette | established |