| Polemoniaceae | |
Giliastrum acerosum
| (A. Gray) Rydb. | Fl. Rocky Mts. 1066 | 1917 |
| Polemoniaceae | |
Giliastrum castellanosii
| J.M. Porter | Aliso 19(1): 75–76 | 2000 |
| Polemoniaceae | |
Giliastrum foetidum
| (Gillies ex Benth.) J.M. Porter | Aliso 17: 83 | 1998 |
| Polemoniaceae | |
Giliastrum gypsophilum
| (B.L. Turner) J.M. Porter | Aliso 17: 84 | 1998 |
| Polemoniaceae | |
Giliastrum incisum
| (Benth.) J.M. Porter | Aliso 17(1): 84 | 1998 |
| Polemoniaceae | |
Giliastrum insigne
| (Brand) J.M. Porter | Aliso 17(1): 84 | 1998 |
| Polemoniaceae | |
Giliastrum ludens
| (Shinners) J.M. Porter | Aliso 17(1): 84 | 1998 |
| Polemoniaceae | |
Giliastrum purpusii
| (Brandegee) J.M. Porter | Aliso 17(1): 84 | 1998 |
| Polemoniaceae | |
Giliastrum rigidulum
| (Benth.) Rydb. | Fl. Rocky Mts. 1066 | 1917 |
| Polemoniaceae | |
Giliastrum stewartii
| (I.M. Johnst.) J.M. Porter | Aliso 32(2): 57 | 2015 |