| Name | Castilleja applegatei var. fragilis (Zeile) N. H. Holmgren |
| Authorship | (Zeile) N. H. Holmgren |
| Rank | Variety |
| Placed in | Castilleja applegatei Fernald |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Castilleja applegatei var. fragilis (Zeile) N. H. Holmgren |
| Identification made in | [no date] (1) |