| Name | Castilleja hispida subsp. acuta Pennell |
| Authorship | Pennell |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Castilleja hispida Bentham |
| GUID | urn:lsid:ipni.org:names:298356-2 |
| Citation | 1941 Notul. Nat. Acad. Nat. Sci. Philadelphia 74: 11 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Castilleja hispida subsp. acuta Pennell |
| Identification made in | [no date] (2) |