水杉
In 1999 the trees of the University Park campus were named an arboretum to honor Chancellor Emeritus Chester M Alter. The Arboretum comprises about 2,100 trees, including many rare specimens for Colorado. Specimens include: Giant Sequoia ("Sequoiadendron giganteum"), Dawn Redwood ("Metasequoia glyptostroboides"),Cedar of Lebanon ("Cedrus libani"), Bald Cypress ("Taxodium distichum"), Umbrella Pine (Sciadopitys) and many species of Maples (Acer) and Oaks (Quercus).