Stroll through the University of New Mexico with Ron Friederich as he identifies and discusses some of the campus trees and other plants. Get out and enjoy springtime at UNM, designated an arboretum in 1994. A broad-brimmed hat and sunglasses are advised. Plenty of on-campus parking available on Saturdays. Limited enrollment.

Ron Friederich, a retired physician, has given various tours for Oasis at the Albuquerque BioPark. He authored a photo guidebook of the Botanic Garden for the BioPark docents. In 1991, he received the Martin Luther King Human Rights Award for establishing the first Eye Clinic at Healthcare for the Homeless, where he volunteered for 26 years.