Study of anatomical characters in Artemisia L from central area of Iran

The genus Artemisia of family Asteraceae has a wide distribution in Iran. Five species of this genus are distributed in Kashan، located in the central part of Iran. For further identification purposes، anatomical of structure of A. scoparia، A. biennis A. persica، A. aucheri and A. oliveriana were studied. Plant materials were fixed in FAA and trasversed sections were prepared by hand and observations were carried out by light microscope. Foliar mesophil type is Isobilateral and also subsidiary stomata cell are anemosyttic. In adaxial and abaxial surfaces of leaves there are two types of trichomes; glandular without stalk and nonglandular، types of simple with multicellular stalk، T shape، long trichome with two arms. Collanchima، fiber cells، colateral vascular bundles، cambium layer were observed in stem section. Secretory duct were observed in root of Artemisia scoparia. A. biennis، was different from other species in some anatomical characters other species in some anatomical characters