Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1467164
| OR | Multnomah | [small pond near Portland International Center] | 2018 |
17090012
| Lower Willamette | established |
1670856
| OR | Multnomah | 14300�14698 N Bybee Lake Ct, Portland, OR, US | 2016 |
17090012
| Lower Willamette | unknown |
1677625
| OR | Multnomah | 5660�5762 NE Cornfoot Rd, Portland, OR, US | 2016 |
17090012
| Lower Willamette | unknown |
1674063
| OR | Multnomah | Centennial, Gresham, OR, USA | 2020 |
17090012
| Lower Willamette | unknown |
242684
| OR | Multnomah | Columbia Slough, Portland | 2003 |
17090012
| Lower Willamette | established |
1678466
| OR | Multnomah | Smith Lake, Portland, OR, US | 2019 |
17090012
| Lower Willamette | unknown |
1675572
| OR | Multnomah | St. Johns, Portland, OR, USA | 2020 |
17090012
| Lower Willamette | unknown |