| Name | Palafoxia callosa (Nuttall) Torrey & A. Gray |
| Authorship | (Nuttall) Torrey & A. Gray |
| Rank | Species |
| Placed in | Palafoxia |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Palafoxia callosa (Nuttall) Torrey & A. Gray |
| Identification made in | 1960 (1) |