| Name | Castilleja flavescens Pennell ex Edwin |
| Authorship | Pennell ex Edwin |
| Rank | Species |
| Placed in | Castilleja Mutis ex Linnaeus f. |
| Citation | 1959 Leafl. W. Bot. 9(3): 45 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Castilleja flavescens Pennell ex Edwin |
| Identification made in | [no date] (4) |
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