⚠ Version 1 of The Plant List has been superseded.
This name record (from TICA) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Tanacetum tenuifolium in version 1.1 of The Plant List.
The record derives from TICA which reports it as a synonym (record
E98428EE-212D-468D-9D90-5C3930546FF7) with original publication details: Prodromus Systematis Naturalis Regni Vegetabilis 6: 129 1837.