This name is a synonym of Callistemon speciosus (Sims) Sweet.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 31495) with original publication details: Fragm. 4: 55 1864.
This name was in version 1 of The Plant List, record kew-31495, and has not been changed.