Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
274059
| MT | Flathead | McWennegar Slough along N. side of SR35 near junction with Columbia Falls Stage | 1959 |
17010208
| Flathead Lake | established |
274060
| MT | Flathead | McWennegar Slough along N. side of SR35 near junction with Columbia Falls Stage | 1960 |
17010208
| Flathead Lake | established |
274061
| MT | Flathead | McWennegar Slough along N. side of SR35 near junction with Columbia Falls Stage | 1993 |
17010208
| Flathead Lake | established |