| Poaceae | |
Hordelymus asper
| (Simonk.) Beldie | Fl. Republ. Socialiste Romania 12: 583, t. 117, f. 2 | 1972 |
| Poaceae | |
Hordelymus caput-medusae
| (L.) Pignatti | Giorn. Bot. Ital. 111(1–2): 58 | 1977 |
| Poaceae | * |
Hordelymus europaeus
| (L.) Jess. | | |
| Poaceae | ! |
Hordelymus europaeus
| (L.) Jess. ex Harz | Landw. Samenk. 2: 1148, f. 135 | 1885 |
| Poaceae | |
Hordelymus grandis
| Besser ex Gorski | | |