| Name | Phaca davidsonii Rydberg |
| Authorship | Rydberg |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Phaca Linnaeus |
| GUID | urn:lsid:ipni.org:names:513256-1 |
| Citation | 1929 N. Amer. Fl. 22: 362 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Phaca davidsonii Rydberg |
| Identification made in | [no date] (1) |