| Regno | Plantae |
| Sottoregno | Tracheobionta |
| Superdivisione | Spermatophyta |
| Divisione | Magnoliophyta |
| Classe | Liliopsida |
| Ordine | Asparagales |
| Famiglia | Orchidaceae |
| Sottofamiglia | Epidendroideae |
| Genere | Catasetum |
| Specie | Catasetum tenebrosum |
A striking species with dark mahogany-maroon male flowers contrasting with a bright greenish-yellow lip. Catasetum tenebrosum is a warm, seasonal grower needing abundant summer water and a dry winter rest.