| Name | Castilleja mearnsii Pennell |
| Authorship | Pennell |
| Rank | Species |
| Placed in | Castilleja Mutis ex Linnaeus f. |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Castilleja mearnsii Pennell |
| Identification made in | [no date] (1), 1932 (1) |