Source Yarsagumba also goes by the name of Himalayan Viagra. It is a rare species which lives 6th month as plant (typically mushroom) and 6 months animal (moth larva). It is found in Nepal, India, Bhutan

Cordyceps sinesis is latin name for Yarsagumba. Yarsagumba is literally a plant in Summer and animal in winter. It is a type of fungus which grows on Catterpillar and is fostly found in meadows above 3,500

All this is down to Yarsagumba, the small, fragile, mummified body of the Himalayan bat moth caterpillar that has been invaded by a fungus - and which is famous throughout the Himalayas as a powerful medicine.