| Pennellia robinsonii Rollins, 1980 |
| Phlebiophragmus O.E. Schulz, 1924 |
| Phravenia Al-Shehbaz & Warwick, 2011 |
| Phravenia viereckii (O.E. Schulz) Al-Shehbaz & Warwick, 2011 |
| Phryne Bubani, 1901 |
| Physaria (Nutt. ex Torr. & A. Gray) A. Gray, 1848 |
| Physaria argentea (S. Schauer) O'Kane & Al-Shehbaz, 2002 |
| Physaria argyraea (A. Gray) O'Kane & Al-Shehbaz, 2002 |
| Physaria argyraea subsp. argyraea (A. Gray) O'Kane & Al-Shehbaz, 2002 |
| Physaria argyraea subsp. diffusa (Rollins) O'Kane & Al-Shehbaz, 2002 |
| Physaria berlandieri (S. Watson) O'Kane & Al-Shehbaz, 2002 |
| Physaria fendleri (A. Gray) O'Kane & Al-Shehbaz, 2002 |
| Physaria gordonii (A. Gray) O'Kane & Al-Shehbaz, 2002 |
| Physaria inflata (Rollins & E.A. Shaw) O'Kane & Al-Shehbaz, 2002 |
| Physaria johnstonii (Rollins) O'Kane & Al-Shehbaz, 2002 |
| Physaria kingii (S. Watson) O'Kane & Al-Shehbaz, 2002 |
| Physaria kingii subsp. kingii (S. Watson) O'Kane & Al-Shehbaz, 2002 |
| Physaria kingii subsp. latifolia (A. Nelson) O'Kane & Al-Shehbaz, 2002 |
| Physaria lindheimeri (A. Gray) O'Kane & Al-Shehbaz, 2002 |
| Physaria mcvaughiana (Rollins) O'Kane & Al-Shehbaz, 2002 |