Constituents of the Essential Oil from the Leaves of Leonotis nepetaefolia (L.) Ait. f.

Abstract The essential oil from the leaves of Leonotis nepetaefolia was isolated by hydrodistillation and was analyzed by GC and GC/MS. Thirty-four compounds which constituted more than 80% of the oil were identified in the oil. The major component were octene (6.9%), (Z)-β-ocimene (4.9%), β-caryophyllene (20.6%), β-copaene (3.4%), α-humulene (12.1%), germacrene D (8.6%) and caryophyllene oxide (7.5%).