| Family | Orchidaceae |
| Subfamily | Epidendroideae |
| Tribe | Maxillarieae (also placed in Cymbidieae) |
| Subtribe | Oncidiinae |
| Scientific name | Oncidium macropetalum Lindley |
| Synonyms | Oncidium macropetalum Lindley var. micranthum G. F. J. Pabst |
| Distribution | Brazil, Paraguay |
| Reference | Oncidium macropetalum Lindl. 1841 |
| Note | Photo below is of an orchid (Onc. macropetalum) which was cultivated by Mr. Yasuo Watanabe and displayed at the Orchid Show 2006 in Mito City Botanic Park. |
| March 2006 at Mito City Botanic Park |