This name is a synonym of Achnopogon steyermarkii Aristeg..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 6B727E86-14AB-4B06-824E-EEA592DEAA2B) with original publication details: 348 1967.
This name was in version 1 of The Plant List, record gcc-137539, and has not been changed.