Pharmacognostic studies on stems of Samanea saman (Jacq) Merr.
Samanea saman(Jacq) Merr. (Fabaceae), commonly called Rato siris in Gujrati, Vilaiti Siris, Gulabi siris in Hindi and Saman, Rain Tree, Monkey Pod in English, is a native of tropical Africa and Asia. The synonym of the Samanea saman is "Monkey pod" which is a fast growing tree that is been introduced to many tropical countries throughout the world from its native habitats in Central America and Northern South America. Even though, it has been planted as an ornamental tree, it has a great value of pastures as shade for the cattle . Rain tree exhibits several bioactive compounds which produce different medicinal properties such as antioxidants, anti-ulcer, antibacterial, analgesic, antifungal, insecticidal and cytotoxic activities. The crude drug is always been cheaper and readily available in abundance with negligible side effects and it is suitable for the patients of all age groups. In present investigation, the detailed pharmacognostic study of Samanea saman(Jacq) Merr. leaf is carried out to lay down the standards which could be useful in future experimental studies. The study includes macroscopy, microscopy, preliminary phytochemical screening and physicochemical evaluation.