Extended distribution of Trillium govanianum Wall. ex D.Don (Melanthiaceae), an endangered species from Arunachal Pradesh, India

Trillium govanianum Wall. ex D.Don is an endangered herbaceous species under the family Melanthiaceae, endemic to the Himalayan region of India at an elevation between 2,400–3,500 m. The species is mostly distributed in temperate and sub-alpine zones of the Himalaya. This paper reports an extended distribution of T. govanianum Wall. ex D.Don as a new addition to the flora of Arunachal Pradesh, India for the first time. In the present study, the species was recorded from the Mandala region, West Kameng District of Arunachal Pradesh. Five locations of the individuals of the species were reported and distribution was mapped along with a detailed description and colour photographs provided for the easy identification of the species.