This name is a synonym of Monardella hypoleuca subsp. lanata (Abrams) Munz.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 129317) with original publication details: Muhlenbergia 8: 39 1912.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:163350-2.
This name was in version 1 of The Plant List, record kew-129317, and has not been changed.