yarsagumba cordyceps sinensis / ophiocordyceps sinensis belonging to ophiocordycipitaceae family

yarsagumba cordyceps sinensis ophiocordyceps belonging ophiocordycipitaceae family cordycep medicinal dong chong xia cao expensive food chinese medicine yartsa viagra gunbu parasitic yarchagumba caterpillar white fungus traditional medical healthy herbs exotic fungi china oriental asian ingredient therapeutic dried isolated alternative health mushroom organic plant background fresh herb nepal natural