A joint team of Nepal Police and Armed Police Force apprehended the two youths with 100 grams of Yarsagumba hidden inside their pocket in Khalanga, district headquarters of Darchula.
The two youths -- Amit Nagyal, 19 and Mannu Rathore, 17 -- were heading to Khalanga of Darchula district in Nepal from Dharchula in India when they were arrested during a security check, police said.
The prized herb is known for its aphrodisiac properties and its transportation, trading and selling is punishable under law.
According to Conservation Officer Pemba Sherpa, the duo would be charged against the National Park and Wild Life Reserve Act 1973.
Half, plant and half insect herb Yarsagumba with scientific name Cordyceps Sinensis is found in the Himalayan region of Nepal.