| Specimen ID | Common Name | State | County | Locality | Year |
| Drainage name | Status |
|
1863321
| American white waterlily | OR | Gilliam | Lake Umatilla | 2023 |
17070101
| Middle Columbia-Lake Wallula | |
|
1863333
| American white waterlily | OR | Gilliam | Lake Umatilla | 2023 |
17070101
| Middle Columbia-Lake Wallula | |
|
1863271
| American white waterlily | OR | Morrow | Lake Umatilla | 2024 |
17070101
| Middle Columbia-Lake Wallula | |
|
1863272
| American white waterlily | OR | Morrow | Lake Umatilla | 2024 |
17070101
| Middle Columbia-Lake Wallula | |
|
1863275
| American white waterlily | OR | Umatilla | [No locality description provided] | 2024 |
17070101
| Middle Columbia-Lake Wallula | |
|
1863302
| American white waterlily | OR | Umatilla | Lake Wallula | 2024 |
17070101
| Middle Columbia-Lake Wallula | |
|
1863303
| American white waterlily | OR | Umatilla | Lake Wallula | 2024 |
17070101
| Middle Columbia-Lake Wallula | |
|
1863273
| American white waterlily | WA | Klickitat | [No locality description provided] | 2024 |
17070101
| Middle Columbia-Lake Wallula | |
|
1863270
| American white waterlily | WA | Klickitat | [No locality description provided] | 2024 |
17070101
| Middle Columbia-Lake Wallula | |
|
1863274
| American white waterlily | WA | Klickitat | Lake Umatilla | 2024 |
17070101
| Middle Columbia-Lake Wallula | |
|
1527237
| American white waterlily | WA | Skamania | Ice House Lake | 2011 |
17070105
| Middle Columbia-Hood | established |