CCDB → Angiosperms → Poaceae → Tuctoria
| Taxon name | Status | Median (n) |
| Orcuttia fragilis Swallen | Synonym of Tuctoria fragilis (Swallen) Reeder | 20 |
| Orcuttia greenei Vasey | Synonym of Tuctoria greenei (Vasey) Reeder | 12 |
| Orcuttia mucronata Crampton | Synonym of Tuctoria mucronata (Crampton) Reeder | 10 |