Morton Arboretum

The Morton Arboretum, in Lisle, Illinois, United States, is a public botanical garden and outdoor museum of living trees with a library, herbarium, and program in tree research through its Center for Tree Science. Its grounds, covering 1,700 acres, include cataloged collections of trees and other living plants, gardens, and restored areas, among which is a restored tallgrass prairie. The living collections include more than 4,100 different plant species. There are more than 200,000 cataloged plants.