About ARIZ

The University of Arizona Herbarium (ARIZ) is a research collection of over 400,000 dried plant specimens, with emphasis on the plants of the Sonoran Desert region and adjacent areas of the southwestern United States and northwesten Mexico. ARIZ is the largest collection in the world of plants from Arizona and Sonora, Mexico.

We are located in historic Herring Hall on the campus of the University of Arizona in Tucson, Arizona.

We are open to researchers and the general public Monday to Friday from 9 a.m. to 5 p.m. Please stop by and visit!

Follow the links at left to learn more about who we are and what we do.