The anatomical characters of eight Salvia species of the Lamiaceae family have been investigated. The stem is regular or irregular quadrangular, with collenchymatous hypodermis, sclerenchyma group above vascular bundles with different number layers in species. Stems and petioles have glandular and eglandular hairs. Also, a cluster analysis was performed with nineteen anatomical characters. Based on our results, two main clusters separate two groups of species and the taxonomical results have been illustrated.
