⚠ Version 1 of The Plant List has been superseded.

This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Oncidium undulatum in version 1.1 of The Plant List.

Oncidium undulatum Warner & B.S. Williams is a synonym of Cyrtochilum halteratum (Lindl.) Kraenzl.

This name is a synonym of Cyrtochilum halteratum (Lindl.) Kraenzl..

The record derives from Tropicos which reports it as a synonym (record 23507706) with original publication details: Orchid Album 8: t. 368 t. 368 1889.