This name is a synonym of Achillea millefolium L..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 6CACAE6A-F020-49D9-B0C7-4E117006E550) with original publication details: Canad. Field-Naturalist 65 11 1951.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:305801-2.
This name was in version 1 of The Plant List, record gcc-74812.