abstract in this study, the mono-sesquiterpenoid composition in the leaves and flowers of salvia moorcroftiana wall ex benth is tracked by probing the contents of individual mono- and sesquiterpenoids in the leaf and flower essential oils obtained by hydrodistillation using a combination of gc and gc/ms techniques. twenty-seven components belonging to different classes of terpenoids and accounting for 94.8% of the total oil were identified in the floral part. monoterpene hydrocarbons represented the dominant class (68%). (z)--ocimene (54.5%) was the principal component along with sabinene (10.3%), and -caryophyllene (9.9%). in the leaves only eleven components accounting for 94.4% of the total oil were identified. the leaf essential oil was almost exclusively composed of sesquiterpene hydrocarbons accounting for 87.7% of the total oil. the principal components present were -caryophyllene (51.6%) followed by germacrene d (18.5%), bicyclogermacrene (7.1%), -humulene (4.8%) and -copaene (3.1%)