| Name | Forsythia suspensa f. atrocaulis Rehder |
| Authorship | Rehder |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Forsythia suspensa (Thunberg) Vahl |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Forsythia suspensa f. atrocaulis Rehder |
| Identification made in | [no date] (1) |