The Pteridophytes are premier primitive vascular Cryptogams plants with feather like fronds, concealed flowers successfully invaded the land. Pteridophytes also known as botanical snakes of plant kingdom. The Pteridophytes grow under various habitats mostly prefer cool shady and moist places. Nallamalla forest is replete with Pteridophytes indicative of their pre-existence from prehistoric times. The study has been carried out in Nallamalla which reveal the Ethno botanical studies of Pteridophytes which are represented by 28 species, 20 genera belonging to 18 families. The Native system of medicine helps to incorporate the gained knowledge in formulations of their products in the field of Native medicine to offer the best and sure treatment of diseases.