| Castilleja conzattii Fernald, 1907 |
| Castilleja cryptandra Eastw., 1909 |
| Castilleja ctenodonta Eastw., 1909 |
| Castilleja dendridion G.L. Nesom, 1992 |
| Castilleja densiflora (Benth.) T.I. Chuang & Heckard, 1991 |
| Castilleja densiflora subsp. densiflora (Benth.) T.I. Chuang & Heckard, 1991 |
| Castilleja densiflora subsp. gracilis (Benth.) T.I. Chuang & Heckard, 1991 |
| Castilleja durangensis G.L. Nesom, 1992 |
| Castilleja eggeri Franc. Gut., Cházaro & Avendaño, 2023 |
| Castilleja exilis A. Nelson, 1904 |
| Castilleja exserta (A. Heller) T.I. Chuang & Heckard, 1991 |
| Castilleja exserta subsp. exserta (A. Heller) T.I. Chuang & Heckard, 1991 |
| Castilleja falcata Eastw., 1909 |
| Castilleja foliolosa Hook. & Arn., 1833 |
| Castilleja fruticosa Moran, 1969 |
| Castilleja galehintoniae G.L. Nesom, 1992 |
| Castilleja genevievana G.L. Nesom, 1992 |
| Castilleja glandulosa Greenm., 1905 |
| Castilleja gleasonii Elmer, 1905 |
| Castilleja gonzalezii G.L. Nesom, 1994 |