This name is a synonym of Tanacetum polycephalum subsp. argyrophyllum (K.Koch) Podlech.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 1E06E7DB-B75C-4856-9B7F-157CB805BD6E) with original publication details: 900 1753.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:173847-1.
This name was in version 1 of The Plant List, record gcc-11518.