Yarsagumba Price Per Kg In Nepal : Yarsagumba, yartsa gunbu, yarsagumba, cordyceps, caterpillar fungus, or himalayan viagra, is an expensive rare combination of fungus and insect's caterpillar and found in himalayan regions at altitudes between 3000 and 5000 meters, in nepal, india and bhutan, and the tibetan plateau.