Compositae (Asteraceae) is the largest family of flowering plants and highly evolved taxon among gamopetalous families, some years back. Compositae was not given the due accent, because it was supposed to of little economic values. Research in recent years beckoned the industrial and pharmaceutical efficacies of the family. Now we have better knowledge of many almost discharged folk remedies as well as hither to uninvestigated plants of Compositae. In order to distinguish S. amaranthoides from other species of the genus, the present pharmacognostic investigations have been carried. Employing customary microtechnical procedures, paraffin embedded sections were prepared and stained with Toluidine blue with the help of photomicrographs, the following data were retrieved. Dorsiventral lamina with fairly thick single stranded vascular bundle and epidermal glandular trichomes located within wide abaxial and adaxial cavities and actinocytic stomata, long winged petiole with aerenchymatous ground tissue, with circle of multistrand vascular bundles accompanied by a pair of winged bundles, thick circular system having aerenchymatous cortex, thick wide hollow vascular bundle of secondary growth and roots with aerenchymatous cortex, solid dense central core of xylem with radial multiples of vessels. The afore said microscopic feature may be claimed to be a protocol of diagnostic feature for the identification of S. amaranthoides and distinguish it from from other congeneric taxa.
