Pharmacognostical and phytochemical investigation of peristrophe bicalyculata.

Morphological, microscopical and phytochemical studies of root and stem of the herb Peristrophe bicalyculata (Acanthaceae) were carried out. Presence of coumarins, alkaloids, potassium chloride (stem and root), saponins and a free sugar (root) have been here in this herb for the first time.