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The Center for Plant DiversityFloral collage

Welcome to the UC Davis Center for Plant Diversity!

1026 Sciences Laboratory Building (J.M. Tucker and Beecher Crampton Herbaria)

Major changes in 2022 calendar and downloadable Flyers:

Volunteer Sundays Moved to Fall 2022 with dates TBA

Ceanothus keying group meets on Third Saturdays of the month from 9AM-12PM
In the herbarium at the UC Davis Center for Plant Diversity
For detals:

Field trip to Pine Hill Preserve Saturday May 21st, 8 am-6 pm
see this link: Field Trip details

Herbarium Highlights

  • Roberto Utrecho has just published three new species of Tragia (Euphorbiaceae) in Phytoneuron (download PDF of paper here).
    Tragia is a worldwide genus of approximately 150 species (more soon to be published by Roberto), some are used medicinally and others known colloquially as “noseburns” as they have stinging hairs. There are probably good stories behind how that common name came to be. Robert has added many specimens of Tragia to our collection, including the holotype of Tragia moranii, a Baja California endemic named in honor of Reid Moran, former curator of Botany at the San Diego Natural History Museum and and noted collector of the flora of Baja California.
  • Read a new The Flora of Bird Haven Ranch published by UCD & herbarium alum Konshau Duman and retired CPD Curator Ellen Dean and Lynette Williams, Andrew Engilis of the Museum of Wildlife and Fish Biology.
  • Read a new Lycianthes publication by Ellen Dean, Jennifer Poore and Hannah Kang
  • Read an article posted by CNPS about Teri Barry and the Center for Plant Diversity written by Herbarium Assistant Hannah Kang.
  • Read an article Every Plant Has a Story: Ellen Dean and the Center for Plant Diversity
  • Take the Herbarium tour with Joe Ditomaso and learn how to identify common weeds using methods employed in professional settings like the U.C. Davis herbarium and also the latest and easiest techniques that employ the use of sophisticated computer programs available to the public.
  • Check out Hidden Treasures, a recent article about the Herbarium.
  • Why would anyone keep a collection of dead plants? (find out here)
  • Read an article about the old Herbarium as it was featured in UC Davis Magazine here .
  • View The Plant Detective, a presentation on collecting plants in the field.

  • Table Mountain

    Table Mountain Ecological Reserve, photo by R. La Rosa, 2021

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Current News

The university has reopened and the herbarium is open Monday through Friday, 9-5.

Modified COVID safety protocols are in place:
To arrange a visit, please contact us by phone (530-752-1091) Or email Alison Colwell, Curator,

pine Click here for the poster of the Cones of California Pines : From the Cone Collection at the UC Davis Center for Plant Diversity (still available for sale while supplies last)

New Resources