| Petalostemon multiflorum Nutt., 1834 |
| Petalostemon obovatum Torr. & A. Gray, 1838 |
| Petalostemon obreniformis Rydb., 1920 |
| Petalostemon occidentalis (A. Heller ex Britton & Kearney) Fernald, 1937 |
| Petalostemon oligophyllum (Torr.) Rydb., 1900 |
| Petalostemon oreophilum Cory, 1939 |
| Petalostemon pilulosus Rydb., 1920 |
| Petalostemon reclinatus (Cav.) Steud., 1841 |
| Petalostemon sessilis DC., 1825 |
| Petalostemon sonorae Rydb., 1920 |
| Petalostemon tripetalus Paul G. Wilson, 1958 |
| Petalostemon truncatus Rydb., 1920 |
| Peteria A. Gray, 1852 |
| Peteria glandulosa (A. Gray ex S. Watson) Rydb., 1923 |
| Peteria pinetorum Ced. Porter, 1956 |
| Peteria scoparia A. Gray, 1852 |
| Peteria scoparia var. glandulosa A. Gray ex S. Watson, 1882 |
| Phaca L., 1753 |
| Phaca allochroa (A. Gray) Rydb., 1917 |
| Phaca arenicola Rydb., 1929 |