| Name | Castilleja tweedya Rydberg |
| Authorship | Rydberg |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Castilleja Mutis ex Linnaeus f. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Castilleja tweedya Rydberg |
| Identification made in | [no date] (1) |
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