| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
1441905
| CA | Alameda | Coyote Hills c. 3 mi SW of Alvarado, southwestern Alameda County | 1971 |
18050004
| San Francisco Bay | established |
|
1442061
| CA | San Bernardino | Silver Creek | 1971 |
18100100
| Southern Mojave | established |
|
1692865
| IL | DuPage | Morton Arboretum, In The Morton Arboretum, in Meadow Lake. | 1971 |
07120004
| Des Plaines | unknown |
|
1523799
| MI | Charlevoix | colonies frequent in roadside ditch between Boyne City and Advance. | 1971 |
04060105
| Boardman-Charlevoix | established |
|
1523803
| MI | Ontonagon | highway M-28 just east of Bruce Crossing | 1971 |
04020102
| Ontonagon | established |
|
1682839
| MN | Hennepin | Ferndale MArsh | 1971 |
07010206
| Twin Cities | unknown |
|
1682954
| MN | Meeker | Swan Lake Willow Swamp | 1971 |
07010204
| Crow | unknown |