Polygonum, Himalayan knotweed, poses major threat to Uttarakhand's bio-diversity, Valley of Flowers
After spreading its roots at the world renowned Valley of Flowers situated at the Nandadevi National Park in Uttarakhand, Polygonum weed is now quickly spreading through the high regions in the Himalayas.
Oct 16, 2020, 15:00 PM IST