A Comparative Pharmacognostic Study and Phytochemical Analysis of Root, Stem, and Leaf of Five Antidiabetic Medicinal Plants (Cassia fistula Linn., Tinospora cordifolia Willd., Gymnema sylvestre Retz., Acacia catechu Willd. and Holarrhena antidysenterica Linn.) for Promoting Conservation of Endangered Plant Species

March 30, 2021