In 2004, over 8000 plant species were assessed as being at risk of becoming extinct. That was 70% of all plant species assessed; over 300,000 plant species were not assessed. In the average territory, over 53 plant species were at risk of local extinction. Most of the plant species shown here exist in only one territory.
The most plant species assessed as at risk are in Ecuador; 74% of 2467 local species assessed there were classed as threatened species. Next is Malaysia, with 58% of the 1177 local species assessed as threatened species. Third is China: at 71% of 627 local plant species. Then Indonesia: 56% of 686. All other territories had assessed fewer than 600 plant species.
Also see extra maps showing botanic gardens, plant species, and the ratio of the two