| Poaceae | |
Graphephorum altijugum
| E. Fourn. | Mexic. Pl. 2: 111 | 1886 |
| Poaceae | |
Graphephorum arundinaceum
| (Roem. & Schult.) Asch. | Fl. Brandenburg 1: 852 | 1864 |
| Poaceae | |
Graphephorum brandegeei
| (Scribn.) Rydb. | Fl. Rocky Mts. 1060 | 1917 |
| Poaceae | |
Graphephorum canescens
| (Buckley) Röser & Tkach | Taxon 69(2): 265 | 2020 |
| Poaceae | |
Graphephorum cernuum
| (Trin.) Röser & Tkach | Taxon 69(2): 265 | 2020 |
| Poaceae | |
Graphephorum cooleyi
| (A. Gray) Farw. | Pap. Michigan Acad. Sci. 1: 88 | 1923 |
| Poaceae | ** |
Graphephorum densiflorum
| E. Fourn. | Bull. Soc. Bot. France 24: 182 | 1877 |
| Poaceae | * |
Graphephorum elliottii
| Kunth | Révis. Gramin. 1: 80 | 1829 |
| Poaceae | |
Graphephorum festucaceum
| (Willd.) A. Gray | Proc. Amer. Acad. Arts 5: 191 | 1861 |
| Poaceae | |
Graphephorum fisheri
| (R. Br.) A. Gray | Ann. Bot. Soc. Canada 1: 57 | 1861 |
| Poaceae | |
Graphephorum flexuosum
| Thurb. ex A. Gray | Proc. Acad. Nat. Sci. Philadelphia 1863: 78 | 1864 |
| Poaceae | |
Graphephorum fulvum
| (Trin.) A. Gray | Ann. Bot. Soc. Canada 1: 57 | 1861 |
| Poaceae | ! |
Graphephorum melicoides
| (Michx.) Desv. | Nouv. Bull. Sci. Soc. Philom. Paris, sér 2 2: 189 | 1810 |
| Poaceae | |
Graphephorum muticum
| (Bol.) A. Heller | Cat. N. Amer. Pl. (ed. 2) 31 | 1900 |
| Poaceae | |
Graphephorum nipponicum
| Honda | J. Jap. Bot. 10: 693 | 1934 |
| Poaceae | ** |
Graphephorum nutens
| Munro ex Duthie | List Grasses N.W. India 41 | 1883 |
| Poaceae | |
Graphephorum pendulina
| (Laest.) A. Gray | Ann. Bot. Soc. Canada 1: 57 | 1861 |
| Poaceae | |
Graphephorum pringlei
| Scribn. ex Beal | Grass. N. Amer. 2: 561 | 1896 |
| Poaceae | |
Graphephorum psilosanthum
| (Rupr.) E. Fourn. | Bull. Soc. Bot. France 24: 182 | 1877 |
| Poaceae | |
Graphephorum shearii
| (Scribn.) Rydb. | Bull. Torrey Bot. Club 32(11): 602 | 1905 |
| Poaceae | |
Graphephorum wolfii
| (Vasey) Vasey ex Coult. | Man. Bot. Rocky Mt. 423 | 1885 |