This name is a synonym of Melaleuca lanceolata subsp. planifolia Barlow.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 123737) with original publication details: Fl. Austral. 3: 145 1867.
This name was in version 1 of The Plant List, record kew-123737, and has not been changed.