| Name | Castilleja elongata Pennell |
| Authorship | Pennell |
| Rank | Species |
| Placed in | Castilleja Mutis ex Linnaeus f. |
| Citation | 1940 Proc. Acad. Nat. Sci. Philadelphia 92: 306–307 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Castilleja elongata Pennell |
| Identification made in | [no date] (1) |
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