Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
41349
| OR | Multnomah | Benson Lake, Multnomah Falls | 2001 |
17080001
| Lower Columbia-Sandy | established |
297287
| OR | Multnomah | Benson Lake, Multnomah Falls | 2009 |
17080001
| Lower Columbia-Sandy | established |
297290
| OR | Multnomah | Benson Lake, Multnomah Falls | 2013 |
17080001
| Lower Columbia-Sandy | established |
41376
| OR | Multnomah | Mirror Pond, Rooster Rock State Park south of highway 30. | 2001 |
17080001
| Lower Columbia-Sandy | established |
297351
| OR | Multnomah | Mirror Pond, Rooster Rock State Park south of highway 30. | 2009 |
17080001
| Lower Columbia-Sandy | established |
297355
| OR | Multnomah | Mirror Pond, Rooster Rock State Park south of highway 30. | 2013 |
17080001
| Lower Columbia-Sandy | established |
41383
| OR | Multnomah | Rooster Rock Slough, north of I-84N at Rooster Rock State Park. | 2001 |
17080001
| Lower Columbia-Sandy | established |
297362
| OR | Multnomah | Rooster Rock Slough, north of I-84N at Rooster Rock State Park. | 2009 |
17080001
| Lower Columbia-Sandy | established |
297367
| OR | Multnomah | Rooster Rock Slough, north of I-84N at Rooster Rock State Park. | 2013 |
17080001
| Lower Columbia-Sandy | established |