Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
41348
| OR | Multnomah | Benson Lake, Multnomah Falls | 2001 |
17080001
| Lower Columbia-Sandy | established |
297285
| OR | Multnomah | Benson Lake, Multnomah Falls | 2009 |
17080001
| Lower Columbia-Sandy | established |
297288
| OR | Multnomah | Benson Lake, Multnomah Falls | 2013 |
17080001
| Lower Columbia-Sandy | established |
41373
| OR | Multnomah | Mirror Pond, Rooster Rock State Park south of highway 30. | 2001 |
17080001
| Lower Columbia-Sandy | established |
297350
| OR | Multnomah | Mirror Pond, Rooster Rock State Park south of highway 30. | 2009 |
17080001
| Lower Columbia-Sandy | established |
297354
| OR | Multnomah | Mirror Pond, Rooster Rock State Park south of highway 30. | 2013 |
17080001
| Lower Columbia-Sandy | established |
41123
| OR | Multnomah | Rooster Rock Slough, north of I-84N at Rooster Rock State Park. | 2001 |
17080001
| Lower Columbia-Sandy | established |
297363
| OR | Multnomah | Rooster Rock Slough, north of I-84N at Rooster Rock State Park. | 2009 |
17080001
| Lower Columbia-Sandy | established |
297368
| OR | Multnomah | Rooster Rock Slough, north of I-84N at Rooster Rock State Park. | 2013 |
17080001
| Lower Columbia-Sandy | established |