Abstract
116 Samples of essential oils belonging to different spontaneous Moroccan species of thyme (T. broussonetii Bois., T. pallidus, T satureioides, T. algeriensis Boiss. et Reut., T. ciliatus (Desf.) Benth. and Thymus hirtus ) were analysed by gas chromatography. The results were processed by Principal Component Analysis (PCA) taking into account 39 compounds among the 90 characterized.