| Prunus subcorymbosa Ruiz ex Koehne, 1915 |
| Prunus tartarea Lundell, 1968 |
| Prunus tetradenia Koehne, 1915 |
| Prunus tikalana Lundell, 1968 |
| Prunus tuberculata Koehne, 1915 |
| Prunus virens (Wooton & Standl.) Shreve., 1915 |
| Prunus virginiana L., 1753 |
| Prunus zinggii Standl., 1936 |
| Purshia DC. ex Poir., 1816 |
| Purshia ericifolia (Torr. ex A. Gray) Henrickson, 1986 |
| Purshia mexicana (D. Don) S.L. Welsh, 1986 |
| Purshia plicata (D. Don) Henrickson, 1986 |
| Purshia stansburyana (Torr.) Henrickson, 1986 |
| Pyracantha M. Roem., 1847 |
| Pyracantha coccinea M. Roem., 1847 |
| Pyracantha crenulata (D. Don) M. Roem., 1847 |
| Pyracantha koidzumii (Hayata) Rehder, 1920 |
| Pyrus L., 1753 |
| Pyrus communis L., 1753 |
| Pyrus malus L., 1753 |