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 983DFE8F-6872-4319-A732-6867E2ACF3D1) with original publication details: Canad. Field-Naturalist 65 10 1951.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:2312-2.
This name was in version 1 of The Plant List, record gcc-53730.