This name is a synonym of Liatris microcephala (Small) K.Schum..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym and as an illegitimate name (record 60C32C14-E202-45B0-B37A-EF12F70C9B31) with original publication details: 473 1898.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:134381-2.
This name was in version 1 of The Plant List, record gcc-137720, and has not been changed.