| Paspalum pulchellum Kunth, 1815 |
| Paspalum punctatum (L.) Flüggé, 1810 |
| Paspalum purpurascens Elliott, 1816 |
| Paspalum purpusii Mez, 1921 |
| Paspalum pusillum Vent. ex Flüggé, 1810 |
| Paspalum pygmaeum Hack., 1912 |
| Paspalum pygmaeum var. genuinum Hack., 1912 |
| Paspalum pygmaeum var. glabrescens Hack., 1912 |
| Paspalum pygmaeum var. pygmaeum Hack., 1912 |
| Paspalum pyramidale Nees, 1829 |
| Paspalum quadrifarium Lam., 1791 |
| Paspalum quadrifarium var. elongatum (Griseb.) Hack., 1904 |
| Paspalum racemosum Nutt., 1837 |
| Paspalum ramosissimum Nees, 1829 |
| Paspalum ramosum Swallen, 1967 |
| Paspalum raunkiaerii Mez, 1917 |
| Paspalum remyi Steud., 1855 |
| Paspalum renggeri Steud., 1855 |
| Paspalum repens P.J. Bergius, 1762 |
| Paspalum repens var. fluitans (Elliott) Wipff & S.D. Jones, 1994 |