The Indian herbal industry is estimated to have a turnover of Rs 2,300 crore annually. It is also involved in the export of finished products, intermediaries and bulk raw materials. More than 90 per cent of the plant species used by the industry are, however, collected from the wild of which 70 per cent involves unorganised harvesting that is invariably destructive. It is primarily plants in which the roots have medicinal properties that is most affected, says M P Sharma, plant taxonomist, Jamia Ham