| Phacellaria Willd. ex Steud., 1841 |
| Phacellaria panicea Willd. ex Steud., 1841 |
| Phaenospermateae Renvoize & Clayton, 1985 |
| Phalarella Boiss., 1844 |
| Phalaridantha St.-Lag., 1889 |
| Phalaridinae Rchb., 1828 |
| Phalaridium Nees & Meyen, 1841 |
| Phalaris L., 1753 |
| Phalaris ambigua Fig. & De Not., 1851 |
| Phalaris americana Elliott, 1816 |
| Phalaris angusta Nees ex Trin., 1827 |
| Phalaris angusta Nees, 1829 |
| Phalaris appendiculata Schult., 1824 |
| Phalaris aquatica L., 1755 |
| Phalaris aquatica Thunb., 1794 |
| Phalaris aquatica var. aquatica L., 1755 |
| Phalaris aquatica var. minor (Retz.) Mutel, 1837 |
| Phalaris aquatica var. stenoptera (Hack.) Burkart, 1969 |
| Phalaris aristata Gouan ex P. Beauv., 1812 |
| Phalaris arundinacea L., 1753 |