| Name | Acanthopanax stenophyllus f. angustissimus Rehder |
| Authorship | Rehder |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Acanthopanax stenophyllus Harms |
| Citation | 1928 J. Arnold Arbor. 9: 99 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Acanthopanax stenophyllus f. angustissimus Rehder |
| Identification made in | [no date] (1) |