| Euchroma angustifolia Nutt. | Castilleja angustifolia (Nutt.) G.Don |
| Euchroma bradburii Nutt. | Castilleja angustifolia (Nutt.) G.Don |
| Euchroma pallescens Nutt. ex A.Gray | Castilleja pallescens (A.Gray) Greenm. |
| Euchroma purpurea Nutt. | Castilleja purpurea (Nutt.) G.Don |