| Poa infirma Kunth, 1816 |
| Poa interior Rydb., 1905 |
| Poa intermedia Steud., 1854 |
| Poa interrupta Lam., 1791 |
| Poa involuta Hitchc., 1928 |
| Poa japonica Thunb., 1784 |
| Poa kaibensis M.E. Jones, 1896 |
| Poa kamtschatica Fisch. ex Komarov, 1934 |
| Poa lamarckii Kunth, 1833 |
| Poa lineata Pers., 1805 |
| Poa linkii Kunth, 1829 |
| Poa longepedunculata Scribn., 1898 |
| Poa longepedunculata var. viridescens T.A. Williams, 1899 |
| Poa longiligula Scribn. & T.A. Williams, 1899 |
| Poa lugens (Nees) Kunth, 1833 |
| Poa macounii Vasey, 1888 |
| Poa magensiana Potztal, 1959 |
| Poa matris-occidentalis P.M. Peterson & Soreng, 2006 |
| Poa matris-occidentalis subsp. matris-occidentalis P.M. Peterson & Soreng, 2006 |
| Poa matris-occidentalis subsp. mohinorensis Soreng & P.M. Peterson, 2006 |