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CCDB → Angiosperms → Poaceae → Gastridium
| Taxon name | Status | Median (n) |
| Gastridium phleoides (Nees & Meyen) C. E. Hubb. | Accepted | 14 |
| Gastridium ventricosum (Gouan) Schinz & Thell. | Accepted | 7 |
| Alopecurus ventricosus (Gouan) Huds. | Synonym of Gastridium ventricosum (Gouan) Schinz & Thell. | 7 |
| Gastridium scabrum C. Presl | Synonym of Gastridium ventricosum (Gouan) Schinz & Thell. | 7 |
| Gastridium ventricosum None | Synonym of Gastridium ventricosum (Gouan) Schinz & Thell. | 7 |
| Milium scabrum (J. Presl) Guss. | Synonym of Gastridium ventricosum (Gouan) Schinz & Thell. | 7 |