⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-330595, with some changes.

Calothamnus quadrifidus f. acerosus (Colla) Benth. is a synonym of Calothamnus quadrifidus R.Br. ex W.T.Aiton

The record derives from WCSP which reports it as a synonym (record 330595) with original publication details: Fl. Austral. 3: 180 1867.