| Name | Magnolia ×slavinii B. E. Harkness |
| Authorship | B. E. Harkness |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Magnolia |
| Citation | 1954 Natl. Hort. Mag. 33: 118 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Magnolia ×slavinii B. E. Harkness |
| Identification made in | [no date] (4) |