Abstract Essential oil was isolated from the leaves of Callistemon salignus âRubraâ collected from two Provinces using hydrodistillation method. Analyses of the compound were done using GC and GC/MS. Between 16â22 compounds were identified, accounting for 90.1â98.5% of the oil samples. The characterized oil samples show a high percentage of oxygen-containing monoterpenes in all the localities. 1,8-Cineole was found to be the main component in all the samples being present in the range of 44.4â85.4%. Others prominent compounds of the oils were α-pinene (6.2â27.8%), α-terpineol (tr-6.8%) and E-(β)-ocimene (tr-6.7%). Key Word Index: Callistemon salignus âRubraâMyrtaceaeessential oil composition1,8-cineoleα-pinene