| Gastridium ventricosum (Gouan) Schinz & Thell. | | a | | Gastridium ventricosum (Gouan) Schinz & Thell. | | 70316 | |
| Gastridium scabrum C. Presl | | a | | Gastridium scabrum C. Presl | | 71074 | |
| Gastridium australe P. Beauv., nom. illeg. | Gastridium ventricosum (Gouan) Schinz & Thell. | | | Gastridium australe P. Beauv., nom. illeg. | Gastridium ventricosum (Gouan) Schinz & Thell. | 103494 | 70316 |
| Gastridium phleoides (Nees & Meyen) C. E. Hubb. | | a | | Gastridium phleoides (Nees & Meyen) C. E. Hubb. | | 412718 | |
| Gastridium ventricosum auct. Amer. | Gastridium phleoides (Nees & Meyen) C. E. Hubb. | | | Gastridium ventricosum auct. Amer. | Gastridium phleoides (Nees & Meyen) C. E. Hubb. | 459481 | 412718 |