| Name | Castilleja pumicicola Pennell |
| Authorship | Pennell |
| Rank | Species |
| Placed in | Castilleja Mutis ex Linnaeus f. |
| Citation | 1941 Notul. Nat. Acad. Nat. Sci. Philadelphia 74: 3–4 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Castilleja pumicicola Pennell |
| Identification made in | [no date] (5) |
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