| Name | Oncidium powelii Schlechter |
| Authorship | Schlechter |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Oncidium |
| Citation | 1922 Repert. Spec. Nov. Regni Veg. Beih. 17: 86 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Oncidium powelii Schlechter |
| Identification made in | [no date] (1), 1999 (1), 2006 (2), 2014 (1) |
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