| Name | Catasetum ×steyermarkii G. A. Romero & Carnevali |
| Authorship | G. A. Romero & Carnevali |
| Rank | Species |
| Placed in | Catasetum Richard ex Kunth |
| Citation | 2024 Harvard Pap. Bot. 29,1: 6 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Catasetum ×steyermarkii G. A. Romero & Carnevali |
| Identification made in | 2025 (2) |