The Orchidoideae, or the orchidoid orchids, are a subfamily of the orchid family (Orchidaceae).

They typically contain the orchids with a single (monandrous), fertile anther which is erect and basitonic.

The subfamily Orchidoideae and the previously recognized subfamily Spiranthoideae are considered the closest allies in the natural group of the monandrous orchids because of

The Orchidoideae contain two subclades with the following tribes :

The former subfamily Spiranthoideae is now embedded as tribe Cranichideae in the clade of the Orchideoideae. It is sister to the tribe Diurideae.

The tribe Orchideae consists of the following subtribes:

The tribe Diseae consists of the following subtribes:

The polyphyletic tribe Cranichideae consists of the following monophyletic subtribes :

The tribe Diurideae consists of the following subtribes :


RICHARD M. BATEMAN, PETER M. HOLLINGSWORTH, JILLIAN PRESTON, LUO YI-BO, ALEC M. PRIDGEON and MARK W. CHASE (2003). "Molecular phylogenetics and evolution of Orchidinae and selected Habenariinae (Orchidaceae)". Botanical Journal of the Linnean Society 142 (1): (on line : )

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