The medicinal and poisonous plants are used in Ayurvedic preparation. Thevetia neriifolia A. Juss. Ex
Steud. Cascabela thevetia (L.) Lippold(Apocynaceae), used and act directly on the muscular system, especially upon the heart
and blood vessels causing great constriction of the latter and distention of the longer arteries. Plant is deadly poisonous and can
be used as suicidal purpose and poison for livestock. Present study includes macroscopy, microscopy, Histopathology,
phytochemical study and qualitative analysis has been carried out. It has more importance in biodiversity conservation as a
poisonous plant.
