| Name | Castilleja ambigua Hooker & Arnott |
| Authorship | Hooker & Arnott |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Castilleja Mutis ex Linnaeus f. |
| Contains | Castilleja ambigua var. ambigua Castilleja ambigua subsp. humboldtiensis (D. D. Keck) T. I. Chuang & Heckard Castilleja ambigua var. insalutata (Jepson) J. M. Egger Castilleja ambigua subsp. insalutata (Jepson) T. I. Chuang & Heckard Castilleja ambigua var. meadii J. M. Egger & Ruygt |
| GUID | urn:lsid:ipni.org:names:800853-1 |
| Holdings | 74 Specimens held in the Harvard University Herbaria identified as Castilleja ambigua Hooker & Arnott |
| Identification made in | [no date] (43), 2003 (29), 2006 (2) |