Salvia wiedemannii Boiss. (Lamiaceae) is an endemic plant of the Irano-Turanian phytogeographic region. Morphological, anatomical and trichomes properties of the plant were examined in this study. Scanning electron microscopy (SEM) was used to describe the micromorphology of trichomes. Two types of glandular trichome were found: peltate and capitate. Morphological properties of various organs of the plant such as stem, leaf and flower were described in detail. As a result, trichomes on stem, pinnatisect leaves, properties of calyx and corolla and type of stamens (A type) were found to be helpful to distinguish Salvia species. In anatomical studies, transverse sections of the stem and leaf were examined and supported by photographs. Anatomical characters such as mesophyll structure in leaves, vascular bundles in leaves and stems and trichome properties provide information of taxonomic significance.