Plants are considered as an essential component of global sustainability due to their different ecosystem services like provision of fuel, food, medicine, shelter, condiments, aromas and perfumes. Healthy ecosystems with plant diversity are vital for the livelihoods and well-being of all humankind. Plants, animals and human beings are inter-dependent upon one another. Therefore, human beings take care of both animals and plants by raring them in friendly environment ensuring their continuity and conservation. In return the food, forage, shelter and protection and other requirements are met by both the flora and fauna inhabiting the same ecological niches. Therefore, it is essential to keep the plant diversity intact for the smooth running of the environment because local plants are important representatives of world biological diversity.
Plants constitute the major life sustaining system by forming the earth as a soft green protection layer. They control the atmosphere, preserve hydrological cycle, feed the animals and provide raw materials for pharmaceutical and scientific purposes. Globally important biological diversity territories are called hot spot territories.
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