The peepal tree is considered sacred in Hinduism and has been worshipped since ancient times. It is native to India and thrives in hot, humid weather, preferring full sunlight and loam soil. The peepal tree has many uses - its bark produces tannin for leather treatment, its leaves can heal wounds when heated in ghee, and research shows it is effective for mitigating various types of pollution by absorbing moisture and regulating local hydrology.
Teak is a tall evergreen tropical hardwood tree known as Tectona Grandis that grows up to 30 meters tall. It grows best in a warm, moist climate with temperatures between 13-17°C and 39-44°C, and rainfall between 1,250-3,750 mm annually. Teak grows well in deep, well-drained fertile soil derived from limestone, schist, gneiss, and shale. It has medicinal properties and is used to make furniture, boats, flooring, and more, providing economic value when sold as raw material.
This document provides information on several medicinal and aromatic plants including lemongrass, eucalyptus, basil, and long pepper. It describes their systematic position, species, varieties, uses of essential oils, and important breeding programs. The lemongrass section provides details on four main Cymbopogon species and nine popular varieties cultivated in India. Eucalyptus citriodora and E. globulus are outlined as the most common eucalyptus species grown. Sweet basil and holy basil are highlighted among the Ocimum genus, and eleven of their varieties are listed. Lastly, long pepper is native to South Asia and its spikes and roots contain medicinal alkaloids.
A considerable number of definitions have been proposed for the term 'medicinal plant'. According to the World Health Organization, "a medicinal plant is any plant which, in one or more of its organs/parts, contains substances that can be used for therapeutic purposes, or which are precursors for chemo-pharmaceutical semi synthesis"