Nature World: Botanists have compiled the most complete data set of rare plants in North and South America, revealing where unique species are found and what factors play into whether a plant species is common or rare in a region.
In the image features Salkantay mountain in Peru. With a stable climate and many small and varied habitats, the Andes mountains are one of the places with the most rare plant species in the Americas. (Photo : Benjamin Blonder)
Botanists have compiled the most complete data set...