The Himalaya and adjacent regions (Pan-Himalaya) form a natural phytogeographical unit, from the Vakhan Corridor eastwards to the Hengduan Mountains via the Karakorum and the Himalaya. This region ...
These plants which comprise 200 families and 1,000 genera (species) made up 14% of the flora in the Malesia phytogeographical region or about 2.5% of the earth’s flora.