This name is a synonym of Chylismia claviformis (Torr. & Frém.) A.Heller.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Rep. Exped. Rocky Mts. 314 1845.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:172870-2.
This name was in version 1 of The Plant List, record kew-2399168, and has not been changed.