⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-4103860, with some changes.
This name is a synonym of Pterygostemon spathulatus V. Boczantzeva.
The record derives from Tropicos which reports it as a synonym (record 4103860).
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:284430-1.