| Poaceae | * |
Gastridium australe
| P. Beauv. | Ess. Agrostogr. 21, 164, t. 6, f. 6 | 1812 |
| Poaceae | |
Gastridium lainzii
| (Romero García) Romero Zarco | Acta Bot. Malac. 38: 225 | 2013 |
| Poaceae | |
Gastridium laxum
| Boiss. & Reut. | | |
| Poaceae | |
Gastridium lendigerum
| (L.) Desv. | Observ. Pl. Angers 48 | 1818 |
| Poaceae | * |
Gastridium lendigerum
| Gaudin | Fl. Helv. 1: 176 | 1828 |
| Poaceae | |
Gastridium muticum
| Günther | Novi Provent. 20 | 1819 |
| Poaceae | |
Gastridium nitens
| (Guss.) Coss. & Durieu | Ann. Sci. Nat., Bot., sér. 4, 1: 229 | 1854 |
| Poaceae | |
Gastridium oblongatum
| Coincy | J. Bot. (Morot) 13: 338 | 1899 |
| Poaceae | |
Gastridium phleoides
| (Nees & Meyen) C.E. Hubb. | Kew Bull. 9(2): 375 | 1954 |
| Poaceae | ! |
Gastridium scabrum
| C. Presl | Cyper. Gramin. Sicul. 21 | 1820 |
| Poaceae | ** |
Gastridium scabrum
| C. Presl | Fl. Sicul. (Presl) 44 | 1826 |
| Poaceae | ! |
Gastridium siculum
| Trin. | Gram. Unifl. Sesquifl. 168–168 | 1824 |
| Poaceae | |
Gastridium triaristatum
| Durieu | Rev. Bot. Recueil Mens. 2: 424 | 1846 |
| Poaceae | |
Gastridium ventricosum
| (Gouan) Schinz & Thell. | Vierteljahrsschr. Naturf. Ges. Zürich 58: 39 | 1913 |