The record derives from TICA
(data supplied on )
which reports it as a synonym (record
D96C8F53-47E3-4F38-A077-EEDEB3DF9250) with original publication details: "C.E.O. Kuntze, Revis. Gen. Pl. 1. 1891" 346 1891.
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 Hieracioides hookerianum in version 1 of The Plant List.