This name is a synonym of Monardella breweri subsp. microcephala (A.Gray) Elvin & A.C.Sanders.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 129321) with original publication details: Syn. Fl. N. Amer. ed. 2, 2(1): 459 1886.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:163353-2.
This name was in version 1 of The Plant List, record kew-129321.