Maryam Eshratifar - Central Herbarium of Tehran University, Department of Plant Biology, School of Biology, University College of Science, University of Tehran, P.O. Box ۱۴۱۵۵-۶۴۵۵, Tehran, Iran.
Farideh Attar - Central Herbarium of Tehran University, Department of Plant Biology, School of Biology, University College of Science, University of Tehran, P.O. Box ۱۴۱۵۵-۶۴۵۵, Tehran, Iran.
Kazem Mahdigholi - Central Herbarium of Tehran University, Department of Plant Biology, School of Biology, University College of Science, University of Tehran, P.O. Box ۱۴۱۵۵-۶۴۵۵, Tehran, Iran.

Leaf anatomy of ۱۰ species of the genus Teucrium L. in Iran were studied. Anatomical structure of leaves was compared in species. The most differences among species belong to the layers of palisadic and spongy parenchyma, thickness of leaf, cuticle of upper surface, size of epidermal cells and trichome types. These characters can be used in distinguishing species and infraspecific taxa and therefore have high taxonomical values.

Teucrium L, Lamiaceae, leaf anatomy, Iran