The record derives from TICA
(data supplied on )
which reports it as a synonym (record
96CE9F0C-D266-4598-8B82-041AB547D5F2) with original publication details: J.F. Freyn in Oesterr. Bot. Z. 40. 1890 45 1890.
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Youngia diversifolia in version 1 of The Plant List.