| Prenanthes fruticosa Willd. ex Less., 1830 |
| Prenanthes pauciflora Torr., 1827 |
| Prionanthes Schrank, 1819 |
| Proustia Lag., 1811 |
| Proustia mexicana Lag. ex D. Don, 1830 |
| Proustia reticulata Lag. ex D. Don, 1830 |
| Psacaliopsis H. Rob. & Brettell, 1974 |
| Psacaliopsis macdonaldii (B.L. Turner) C. Jeffrey, 1992 |
| Psacaliopsis paneroi (B.L. Turner) C. Jeffrey, 1992 |
| Psacaliopsis paneroi var. juxtlahuacensis Panero & Villaseñor, 1996 |
| Psacaliopsis paneroi var. paneroi (B.L. Turner) C. Jeffrey, 1992 |
| Psacaliopsis pinetorum (Hemsl.) Funston & Villaseñor, 2008 |
| Psacaliopsis purpusii (Greenm.) H. Rob. & Brettell, 1974 |
| Psacalium Cass., 1826 |
| Psacalium amplifolium (DC.) H. Rob. & Brettell, 1973 |
| Psacalium amplum (Rydb.) H. Rob. & Brettell, 1973 |
| Psacalium argutum Rydb., 1924 |
| Psacalium beamanii H. Rob., 1978 |
| Psacalium brachycomum (S.F. Blake) H. Rob. & Brettell, 1973 |
| Psacalium calvum (Brandegee) Pippen, 1968 |