Editing Oncidiinae (section)

{{short description|Subtribe of flowering plants}}
{{Automatic taxobox
| image = Odontoglossum Big Mac x Brs longissima01.jpg
| image_caption = ''Odontoglossum'' Big Mac × ''Brassia longissima''
| display_parents = 2
| taxon = Oncidiinae
| authority = [[George Bentham|Benth.]]
| subdivision_ranks = Genera
| subdivision = See text
}}

The '''Oncidiinae''' is a [[subtribe]] within the [[Orchidaceae]] that consists of a number of genera that are closely related.

This subtribe consists of about 70 genera with over 1000 species, with ''[[Oncidium]]'' as its largest genus. These genera consist of a single floral type based on the angle of the attachment of the [[Labellum (botany)|lip]] to the [[Column (botany)|column]], reflecting [[pollinator]] preferences. This has however led to several unreliable results and [[polyphyletic]] taxa within ''[[Oncidium]]''. These were transferred to ''[[Gomesa]]'' and a new genus ''[[Nohawilliamsia]]'', has been  described for ''Oncidium orthostates''<ref>{{Cite journal
  | last = Chase
  | first = Mark W.
 |author2=Norris H.Williams |author3=Aparacida Donisete de Faria |author4=Kurt M. Neubig |author5=Maria do Carmo E. Amaral |author6=W. Mark Whitten
  | title = Floral convergence in Oncidiinae (Cymbidieae; Orchidaceae): an expanded concept of Gomesa and a new genus Nohawilliamsia
  | journal = Annals of Botany
  | volume = 104
  | issue = 3
  | pages =  387–402
  | year = 2009
  | url= | pmid = 19346522
  | pmc = 2720657| doi = 10.1093/aob/mcp067
  }}
</ref>

Most species have well-developed [[pseudobulb]]s and conduplicate leaves.

It is possible to form hybrids in some instances between multiple genera within the Oncidiinae. These hybrids are often colloquially referred to as "intergenerics."