| Eragrostis pennsylvanica Scheele, 1844 |
| Eragrostis peregrina Wiegand, 1917 |
| Eragrostis perplexa L.H. Harv., 1954 |
| Eragrostis pilosa (L.) P. Beauv., 1812 |
| Eragrostis pilosa f. multicaulis (Steud.) I.C. Chung, 1955 |
| Eragrostis pilosa subsp. damiensiana (Bonnet) Thell., 1908 |
| Eragrostis pilosa var. bahiensis (Schrad. ex Schult.) Kuntze, 1898 |
| Eragrostis pilosa var. capillaris (L.) Kuntze, 1898 |
| Eragrostis pilosa var. caroliniana (Biehler) Farw., 1916 |
| Eragrostis pilosa var. condensata Hack., 1901 |
| Eragrostis pilosa var. damiensiana Bonnet, 1881 |
| Eragrostis pilosa var. delicatula (Trin.) Hack., 1904 |
| Eragrostis pilosa var. lugens (Nees) Griseb., 1879 |
| Eragrostis pilosa var. minor (Host) Kuntze, 1898 |
| Eragrostis pilosa var. pilosa (L.) P. Beauv., 1812 |
| Eragrostis plumbea Scribn. ex Beal, 1896 |
| Eragrostis plumosa (Retz.) Link, 1827 |
| Eragrostis poaeoides P. Beauv. ex Roem. & Schult., 1817 |
| Eragrostis poaeoides var. laxiflora Döll, 1878 |
| Eragrostis poiformis Link, 1827 |