ARIZ


The University of Arizona Herbarium (ARIZ) is a research collection of over 425,000 dried plant specimens, with emphasis on the plants of the Sonoran Desert region and adjacent areas of the southwestern United States and northwestern Mexico.


Great to see you all at BOTANY 2019!


Summer Hours (subject to change; changes will be posted here):

  • Mon-Fri: 8-4

  • Resources


    Specimens


    Search our collection of over 400,000 specimens.

    Books


    Search our literature collection.

    People


    ARIZ works closely with a number of researchers in Arizona and around the country.

    Services


    ARIZ is dedicated to identifying plants for members of the public, Arizona producers, Poison Control, anyone.

    Featured projects


    Seminars


    Weekly seminars are scheduled throughout the academic year.

    Workshops


    Occasional workshops provide training in plant identification and more.

    Section 6 Grants


    Rare plant research: 2019 DEADLINE: Monday 5/27, 8 am

    National Park Service


    ARIZ and the National Park Service are partnering on a number of projects.

    Legumes of Arizona


    Legumes of Arizona: An Illustrated Flora and Reference will be a comprehensive account of the family Fabaceae in Arizona.

    Flora of SW Arizona


    ARIZ Associated Researchers are documenting modern and fossil plant diversity.

    Funding


    It is an ongoing effort to find funding to keep these projects alive, protect our specimens, and serve the public.

    Types


    We are imaging our nearly 1500 type specimens.
    For a complete listing of our projects, past and present, see our Projects page