Germplasms| Accession | Name | Taxonomy | Origin | Received | Improved status |
|---|---|---|---|---|---|
| PI 440656 | D-1962 | Silphium perfoliatum L. | Kazakhstan | 1978 | CULTIVAR |
| PI 400232 | Silphium perfoliatum L. | Former, Soviet Union | 1975 | UNCERTAIN | |
| W6 46126 | CBG-1826 | Silphium perfoliatum L. | Wisconsin, United States | 2013 | WILD |
| W6 27830 | WC 15 | Silphium perfoliatum L. | Ohio, United States | 2004 | WILD |
| W6 27824 | Stucker Meadow 46 | Silphium perfoliatum L. | 2004 | WILD | |
| W6 19275 | B96-72 | Silphium perfoliatum L. | Bulgaria | 1996 | WILD |
| W6 17640 | W6 17640 | Silphium perfoliatum L. | Germany | 1994 | UNCERTAIN |