Oncidium (Onc) contains 600 species from throughout Central America and South America. They grow in a wide variety of environments. If you know a little about where the species grows, they do very well in cultivation.
Oncidium nudum grows in northern South America in hot, humid wetlands. It blooms in winter and has an inflorescence that extends almost two feet.
01/23/2013 - Bloomed, Blog entry
11/15/2012 - Plant looks healthy, Blog entry
01/24/2012 - Bloomed, Blog entry