Help with species

[Roberta]

Not a species, I would guess that it is an Oncidium-tribe intergeneric hybrid. That means that several related genera (plural of genus) were used to produce the result - a human-made combination. It is lovely. Look for cultural information on Oncidium intergeneric hybrids. In general, they like to be kept slightly damp (not soggy). For light, bright shade or dappled sun. Where do you live? That would help members of the Orchid Board to help you with more specific cultural advice.