| Name | Siphonychia americana (Nuttall) Torrey & A. Gray |
| Authorship | (Nuttall) Torrey & A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Siphonychia |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Siphonychia americana (Nuttall) Torrey & A. Gray |
| Identification made in | [no date] (1) |