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CCDB → Angiosperms → Orchidaceae → Rossioglossum
| Taxon name | Status | Median (n) |
| Oncidium ampliatum Lindl. | Synonym of Rossioglossum ampliatum (Lindl.) M. W. Chase & N. H. Williams | 22 |
| Odontoglossum grande Lindl. | Synonym of Rossioglossum grande (Lindl.) Garay & G. C. Kenn. | 22 |
| Odontoglossum schlieperianum Rchb. | Synonym of Rossioglossum schlieperianum (Rchb.) Garay & G. C. Kenn. | 22 |
| Odontoglossum williamsianum Rchb. | Synonym of Rossioglossum williamsianum (Rchb.) Garay & G. C. Kenn. | 22 |