ANATOMICAL AND COMPARATIVE STUDY OF SELECTED WILD SPECIES FROM THE FAMILY COMPOSITAE IN ANBAR

Abstract

Wild Species of seven Iraqi Asteraceae family were compared anatomically these specie Sonchus oleraceus, Silybum marianum, Gymnarrhena micrantha ,Calendula persica, Aster subulatus, Taraxucum officinale and Onopordon canum include Detailed of anatomical of stem, petiole and roots .The result showed that anatomical characters of stem and petiole such as shape outline, number of vascular bundles, size of pith and cortex, present of Chlorenchyma and collenchyma tissue or no are of considerable taxonomic value at the specific or generic level and can be used for taxa separation. The study showed the characters of epidermis , cortex' and vascular Bundal forms is be made the center of root and the measure the xylem and phloem .,