Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1732909
| | | along edges of Widgeon Slough beside Siwash Island, near the confluence of Pitt River and Pitt Lake (Fox River Reach), north of Pitt Meadows. | 2004 |
| | |
1732362
| | | Widgeon Slough | 2004 |
| | |
1687344
| CA | Riverside | county non-specific | 2017 |
| | eradicated |
1687343
| CA | Stanislaus | rice field near Modesto | 1991 |
18040009
| Upper Tuolumne | eradicated |
1421508
| HI | Hawaii | Machuu Taro Farm, Waipio Valley | 2005 |
20010000
| Hawaii | unknown |
1732980
| HI | Hawaii | Machuu Taro Farm, Waipio Valley, Big Island, Hawaii | 2005 |
20010000
| Hawaii | |
1421499
| HI | Hawaii | Waimanu Valley, in flooded estuary | 1985 |
20010000
| Hawaii | unknown |
1421498
| HI | Honolulu | Ka'elepulu Pond, Kailua, north and west borders | 1940 |
20060000
| Oahu | unknown |
1421497
| HI | Honolulu | Kawainui Swamp, Kailua, at edge of canal | 1930 |
20060000
| Oahu | unknown |
1421507
| HI | Kauai | along banks of Lawa‘i Stream behind Stillwater Dam | 1997 |
20070000
| Kauai | unknown |
1543324
| HI | Kauai | along banks of Lawa‘i Stream behind Stillwater Dam | 1997 |
20070000
| Kauai | established |
1421509
| HI | Kauai | Hanalei National Wildlife Refuge, Kauai, growing on edge of taro loi, NE corner of C1 Pond | 2005 |
20070000
| Kauai | unknown |
1732981
| HI | Kauai | Hanalei National Wildlife Refuge, Kauai, Hawaii | 2005 |
20070000
| Kauai | |
1732973
| MD | Prince George's | Snowden Pond, Patuxent Wildlife Research Center | 1974 |
02060006
| Patuxent | |
1732970
| MD | Prince George's | Snowden Pond, Patuxent Wildlife Research Center | 1977 |
02060006
| Patuxent | |
1732972
| MD | Prince George's | Snowden Pond, Patuxent Wildlife Research Center | 1977 |
02060006
| Patuxent | |
1732979
| MD | Prince George's | Snowden Pond, Patuxent Wildlife Research Center | 1977 |
02060006
| Patuxent | |
1732363
| VA | Stafford | Mountain View Orchard, 272 Ramouth Church Rd. | 2018 |
02070011
| Lower Potomac | |