The present paper highlights the ethnopharmacological importance of the flora of Udayagiri forest division of Nellore district in the state of Andhra Pradesh. Tribal people inhabited in this area have good knowledge on medicinal potential of the available plant resources. They utilize different parts like roots, tubers, stem bark, leaves, flowers, fruits and seeds. All these parts are employed in the form of paste, powder, juice, decoction, infusion etc. The remedies are also used in crude form, with other additives like ‘ghee’, ‘sesame oil’ and ‘goat milk’, to get relief from different ailments.

The paper discloses hidden knowledge of tribal people on 41 species of plants belonging to 31 families to relieve the ailments like arthritis, Jaundice, rheumatism, burning micturation, fevers, worm infestation, menstrual problems, cold, cough, indigestion, diarrhoea, constipation, diabetes, asthma, stomach-ache, insomnia, piles,, sexual problems, bone fractures, skin diseases, ulcers, cuts, wounds etc.