| Name | Diphylleia cymosa subsp. grayi (F. Schmidt) Kitamura |
| Authorship | (F. Schmidt) Kitamura |
| Rank | Subspecies |
| Placed in | Diphylleia cymosa Michaux |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Diphylleia cymosa subsp. grayi (F. Schmidt) Kitamura |
| Identification made in | 1980 (1) |