Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1473260
| IL | DuPage | Morton Arboretum, HH-128/5-3 | 1972 |
07120004
| Des Plaines | established |
1473268
| IL | DuPage | Morton Arboretum, Northern Europe: Y-39/77-13 | 2009 |
07120004
| Des Plaines | established |
1473267
| IL | DuPage | Morton Arboretum, Salicaceae, south side; L-22/01-25 | 2005 |
07120004
| Des Plaines | established |
1473257
| IL | DuPage | Morton Arboretum, Willow Collection, HH-128/3-5 | 1971 |
07120004
| Des Plaines | established |
1473266
| IL | DuPage | Salix Collection, far eastern side of Arboretum; HH-128/30-50 | 1983 |
07120004
| Des Plaines | established |
1473259
| IL | DuPage | West side of Valley Road and N of Simonds Road; X-38/1-1.5 | 1972 |
07120004
| Des Plaines | established |