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The Center for Plant DiversityFloral collage

(also view Taxonomic Resources) 

Photo of Mohavea confertiflora

Mohavea confertiflora

Type Specimen Collection

Our type specimens have been imaged and are available at the JSTOR plant science website CLICK HERE.

Consortium of California Herbaria

Query all our specimen data through the Consortium of California Herbaria Portal (CCH2) (select: DAV - UC Davis Herbarium)

Macroalgae Collections

Query our macroalgae collections through the Macroalgae Herbarum Portal.

Our lichen collection (1,555 specimens!):

To see the specimen data, go to: Click on the Search tab at the top, choose “Specimen Search”, scroll down to select: University of California, Davis, Center for Plant Diversity.

Biodiversity Information standards - our participation:

We would appreciate those accessing our published data to please complete our very short survey: UCD herbarium data survey
          (Your feedback is important to us and helps us maintain our data provisioning service)

Collections Strength

The UC Davis Center for Plant Diversity has ca. 300,000 specimens. The collections are worldwide in scope, with strengths in the following geographic regions: California; Ecuador; Baja California; the Antilles; the Pacific Islands; Mediterranean-climate regions. The following speciality areas are strong: range plants of California; vernal pool plants of California; alpine flora of western North America; poisonous and weedy plants of California; Euphorbiaceae; Poaceae; and the genera Quercus, Allium, Arctostaphylos, Atriplex, Capsicum, Clarkia, Eschscholzia, Lycianthes, Lycopersicon, Mimulus, Navarretia, Stephanomeria, Trifolium, Vitis.

The following collectors are well-represented in our collections: B. G. Baldwin, F. Bowcutt, CNPS, B. Crampton, E. Dean, J. Ditomaso, E. L. Ekman, K. Esau, R. W. Gankin, L. Gottlieb, G. Helmkamp, G. F. Hrusa, P. B. Kennedy, H. Kennedy, A. T. Leiser, J. Major, B. J. McCaskill, H. Olmo, R. Preston, W. W. Robbins, D. Sanchez-Mata, M. Sanderson, J. Shepard, A. Solomeshch, G. L. Stebbins, D. Taylor, J. M. Tucker, E. C. Twisselmann, G. L. Webster

Our library includes parts of the botanical libraries of B. Crampton, J. Major, J. Tucker, L. C. Wheeler, and G. L. Webster.

For a more thorough description of our collections CLICK HERE.


The early history of the Herbarium can be found in this article from 1995. For information on notable past collectors CLICK HERE.

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