| Name | Siphonychia |
| Authorship | |
| Rank | Genus |
| NomenclaturalStatus | NomLeg |
| Placed in | Caryophyllaceae |
| Contains | Siphonychia americana (Nuttall) Torrey & A. Gray Siphonychia corymbosa Small Siphonychia diffusa Chapm. Siphonychia erecta Chapm. Siphonychia interior (Small) Core Siphonychia pauciflora Small Siphonychia rugelii Chapm. Siphonychia sp. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Siphonychia |
| Identification made in | [no date] (1) |