New Guinea has the greatest variety of plants of any island in the world
Daily Mail
Experts from the University of Zurich examined 700,000 plant specimens from the southwestern Pacific island as part of a study into its ecosystem diversity.
https://www.dailymail.co.uk/sciencetech/article-8599615/New-Guinea-greatest-variety-plants-island-world.html?ns_mchannel=rss&ns_campaign=1490&ito=1490