This name is a synonym of Achillea clypeolata Sm..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record B5880739-6C67-42A3-BE5B-6D6E830CFE03) with original publication details: 26 1931.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:173797-1.
This name was in version 1 of The Plant List, record gcc-80344.