Oncidium contains about 400 species.
Most of them are epiphytes upon trees and are distributed mainly in the Central and South America.
Its genus name is derived from the Greek word "onkos" (meaning "swelling").
This refers to the swellings on the callus (the base of the lip).
Oncidium croesus is a wild species endemic to Brazil.
All plants belonging to Orchidaceae are regulated under the Washington Convention.
| Classification ||Orchidaceae Oncidium|
| Scientific name ||Oncidium croesus Rchb.f.|
| Japanese name ||---|
| English name ||---|
| Native locality ||Brazil|
Ecological description ||Epiphyt upon treese|
| RDB || --- |
| Planting place ||Orchid Corner|