Overexploitation, long life cycle have endangered a common Himalayan herb Updated: Updated: Population declines of at least 50% are expected to occur between 2010 and 2079 Share Article AAA Population declines of at least 50% are expected to occur between 2010 and 2079 (Subscribe to Science For All, our weekly newsletter, where we aim to take the jargon out of science and put the fun in. Click here.) The Himalayan trillium ( Trillium govanianum), a common herb of the Himalayas was declared ‘endangered’ by the International Union for Conservation of Nature (IUCN) last week. In recent year...