This name is a synonym of Cryptantha flaccida (Douglas ex Lehm.) Greene.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Proc. Amer. Acad. Arts 10: 58 1874.
This name was in version 1 of The Plant List, record kew-2797869, and has not been changed.