Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1770982
| OR | Clackamas | [No locality description provided] | 2016 |
17090012
| Lower Willamette | |
1770778
| OR | Clackamas | [No locality description provided] | 2019 |
17090012
| Lower Willamette | |
1770781
| OR | Clackamas | [No locality description provided] | 2020 |
17090012
| Lower Willamette | |
854197
| OR | Columbia | Dixie Mountain | 2007 |
17090012
| Lower Willamette | established |
243170
| OR | Columbia | Multnomah Channel, Sauvie Island-Gilbert River Boat Ramp | 2002 |
17090012
| Lower Willamette | established |
854011
| OR | Columbia | Saint Helens | 2007 |
17090012
| Lower Willamette | established |
1770949
| OR | Multnomah | [No locality description provided] | 2008 |
17090012
| Lower Willamette | |
1770953
| OR | Multnomah | [No locality description provided] | 2010 |
17090012
| Lower Willamette | |
1770773
| OR | Multnomah | [No locality description provided] | 2018 |
17090012
| Lower Willamette | |
1770784
| OR | Multnomah | [No locality description provided] | 2021 |
17090012
| Lower Willamette | |
1770993
| OR | Multnomah | [No locality description provided] | 2022 |
17090012
| Lower Willamette | |
1771004
| OR | Multnomah | [No locality description provided] | 2022 |
17090012
| Lower Willamette | |
1771015
| OR | Multnomah | [No locality description provided] | 2022 |
17090012
| Lower Willamette | |
242774
| OR | Multnomah | Burlington Bottoms, northwest of Portland | 1998 |
17090012
| Lower Willamette | established |
854212
| OR | Multnomah | Damascus | 2008 |
17090012
| Lower Willamette | established |
854174
| OR | Multnomah | Portland | 2010 |
17090012
| Lower Willamette | established |