Freshman Danielle Hacker and Collections Manager Kim Kersh at Cal Day 2006 - Photo credit: Peg Skorpinski (click for News item) Flowering plant - Allium crispum - Photo credit: John Game (click for John Game's photographs) Flowering plant - Madia elegans "densifolia" - Photo credit: Bruce G. Baldwin (click for Baldwin Lab) Flowering plant - Eriogonum truncatum - Photo credit: Scott Hein of Save Mount Diablo (click for News item) Alga - Antithamnion cruciatum - Photo credit: Athanasios  Athanasiadis (click for publication in Constancea) Plant display and lecturer - Cal Day (click for News item) Moss - Sphagnum mendocinum - Photo credit: John Game (click for BryoLab)



Welcome to the Herbaria
The University and Jepson Herbaria of the University of California at Berkeley are two collections of pressed plants housed together along with research labs, libraries, and archives. Together the Herbaria hold about 2,200,000 specimens, one of the largest collections in North America.
 •The University Herbarium, established in 1895, holds botanical collections from around the world.
 •The Jepson Herbarium, established in 1950, specializes in the vascular plants of California.
Updated version now available for collectors: A free MS Excel template to manage your collection data, make labels, and easily upload your specimen data to our database, CollectionSpace. Specimens accompanied by metadata in this spreadsheet will be given top priority for accessioning in UC/JEPS. ... Click here for details
Botany Lunch Seminar schedule has been posted for the Fall 2019 session. Meetings are Fridays at noon during the academic year — all are welcome!
Registration for the 2020 Jepson Workshops is now open!
Curatorial Volunteers Needed at University and Jepson Herbaria. Saturday volunteer dates are posted for the 2019-2020 session (see below)
Herbaria Contact Information
  News from the Herbaria

December 2, 2019
The 2020 schedule for Jepson Herbarium Workshops is now available! There are educational opportunities for a broad audience of professional and amateur botanists. The weekend workshop program is celebrating its 27th season and will offer courses in basic botany, plant taxonomy, regional floras, ecology, and more! For the full slate of workshops, and to enroll, please see:
October 21, 2019
UC/JEPS alum Ekaphan (“Bier") Kraichak received this year's “Young Scientist Award” in Thailand. It is given annually to outstanding scientists under the age of 35, and was presented by Princess Sirindhorn herself. Bier received his PhD from UC Berkeley in 2012, studying evolutionary ecology of liverworts in Brent Mishler’s lab, and is now an assistant professor in Botany at Kasetsart University in Bangkok, Thailand.
August 09, 2019
UC/JEPS faculty, staff, and students played a major role in the recently concluded Botany 2019 meeting. The most exciting news is that three graduate students were recognized for best student talks in three different sections: Isaac Marck won the George R. Cooley Award, Joyce Chery won the Katherine Esau Award, and Jenna Ekwealor received Honorable Mention for the A.J. Sharp Award. See our Facebook page for more details.
March 14, 2019
Join BigGive by making a gift to support undergraduate students working at the University and Jepson Herbaria. Here, they will gain valuable skills in botany and conservation biology while helping us document biodiversity and share data with the world.
November 19, 2018
A new study has been published by a UC/JEPS team evaluating conservation priorities across California from several different evolutionary standpoints, to guide land conservation efforts. Read the campus news story here and here, the research paper here, and explore the data and methods in an interactive web link here.
October 22, 2018
The Jepson eFlora Revision 6 was published in September 2018! One of the new species included is Erythranthe shevockii (photo by John Game). For the full details, please see the summary here:
August 15, 2018
The University and Jepson Herbaria recently completed a NPS funded project to database and image over 1000 specimens collected by John Muir and housed at the John Muir National Historic Site in Martinez, California. Specimens were collected in Canada and Indiana in 1864-1867 and on his world tour in 1903-1904. Many of the specimens were in poor condition and were carefully remounted by plant mounter extraordinaire, Ana Penny. The Muir specimens are accessible via our Specimen Portal:
April 30, 2018
The University and Jepson Herbaria collaborated on an exhibit entitled Sustaining Grandeur: The First 100 Years of Save the Redwoods League, on display in the Bancroft Gallery in Doe Annex, April through August, 2018 (10 a.m. to 4 p.m. Monday through Friday).
For details on assembling the exhibit, which includes specimens and archival material from the Herbaria, please see:
January 8, 2018
The Jepson eFlora Revision 5 was published in December 2017! One of the new species included is Vaccinium shastense (photo by Steve Matson).
For the full details, please see the summary here:

October 30, 2017
A second paper has been published by the same UC/JEPS team referenced in a previous news item on this page (April 11, 2017), adding phylogenetic methods to the study of diversity and endemism in the California flora. This novel "spatial phylogenetics" approach makes it possible to evaluate biodiversity from an evolutionary standpoint, including discovering significant areas of neo- and paleo-endemism. Read the campus news story here and the open-source paper here.

October 5, 2017
Ingrid Jordon-Thaden, the lab manager for Assistant Professor/Curator Carl Rothfels of Integrative Biology and University and Jepson Herbaria, has been featured in a news article for UC Berkeley Research-IT (RIT). For the full article, click this link.

October 1, 2017
We are sad to announce that UC/JEPS Researcher Daniel Norris passed away September 30, 2017. Dan was an internationally famous bryologist, as well as a mentor for many students and colleagues in bryology. He is greatly missed here, and around the world.
... Read more here

April 11, 2017
New study published by a UC/JEPS team uses specimen-based distributional data, diversity metrics that include species’ relative breadth of range, and a randomization test, to map biodiversity and endemism for California native vascular plants. Download the PDF of full paper here.

March 17, 2017
UC/JEPS graduate students Joyce Chery and Carrie Tribble star in a two-part series telling the story of herbaria, including how to make plant collections, how they are curated, and how they are used in research, as part of the Science in Real Life series.
Plant Collecting & Herbarium Research ... Part 1.
Plant Collecting & Herbarium Research ... Part 2.

February 14, 2017
The Jepson eFlora Revision 4 was published in December 2016! One of the new species included is Adiantum shastense (photo by Julie Kierstead Nelson).
For the full details, please see the summary here:

January 18, 2017
UC/JEPS Researcher Benito Ching Tan has died. He was an internationally famous bryologist, as well as a helpful colleague and mentor for California botanists. We will miss him greatly. ... Read more here... and here.

September 20, 2016
University and Jepson Herbaria researchers Andrew Thornhill and Brent Mishler, as part of an international team, have published a major study using phylogenetic methods to model the effects of climate change on the eucalypts, Australia’s most dominant and widespread trees. ... Read more here.

September 16, 2016
Jepson Curator Bruce Baldwin receives the Robert Allerton Award for Excellence in Tropical Botany, from the National Tropical Botanical Garden, for his work on the origins of the Hawaiian flora. ... Full article available here.

May 23, 2016
SO BE FREE 22 to be held March 27 - 30, 2017, in the lower elevations of the Sierra Nevada, near Sequoia National Park. Participants will see a variety of spectacular habitats that are very rich in bryophytes, including the foothills where the valley fog hits the rock outcrops and oak savannahs. The geology includes marble as well as granitics. Depending on snowpack, we may be able to go to the giant sequoia forests. Registration Deadline is Dec. 15, 2016. Registration details here.
closeup photo of sticky cinquefoil flower

May 10, 2016
The California Native Plant Society released CalScape, a resource for native plant gardeners built in collaboration with the Jepson Herbarium. ... Read more from Berkeley News

March 7, 2016
Joyce Chery, a National Science Foundation Fellow and a graduate student in the lab of UC/JEPS Curator of Monocots Chelsea Specht, is a semi-finalist in the Grad Slam, a UC-sponsored competitive speaking event designed to showcase the best research presentations given by UC graduate students. Here is a short video clip from her presentation
A woman behind the branches of a woody plant, examining its leaves with a hand lens
map of California, split up by different bioregions

February 29, 2016
New feature added to the Jepson eFlora: dichotomous keys filtered to bioregions. ... Try them here

February 8, 2016
Altitudinal shifts of the flora of California, in the context of climate warming, were studied in a major new paper featuring data from the Consortium of California Herbaria ... See news coverage from Climate Central and The Atlantic
mounted herbarium specimen of Arctostaphylos glandulosa with plant and label visible
CCH logo of a stylized manzanita specimen

January 28, 2016
An article describing the value of the Consortium of California Herbaria (CCH) was published in Fremontia, the Journal of the California Native Plant Society. ... Full article available here

January 25, 2016
"A successful example of advancing an herbarium with coordinated development in the strengths of both science and public programs is the University and Jepson Herbaria of the University of California, Berkeley. Their active research is complemented by the major role they play in the Consortium of California Herbaria. They have helped pioneer data portal development and eFlora projects, and have an active public education program. In addition the molecular lab and the herbarium are well integrated and are incorporated in the plans for the future. Such examples should be sought out and highlighted by the systematics community."

Quote from Wen et al. 2015. ... Full article available here
simple phylogenetic tree to major groups of California vascular plants
Photo of small pink flowers of Linanthus bernardinus (Pioneertown Linanthus)

December 18, 2015
The Jepson eFlora Revision 3 is posted! It includes seven newly-described taxa native to California, including Linanthus bernardinus (photo by Duncan Bell). For the full details, please see the summary here:

December 7, 2015
Registration now open to all for 2016 workshops! See the schedule here
photo of workshop attendees in the White Mountains landscape
close-up photo of a winged Coulter pine seed with a dissected cone in the background

December 1, 2015
KQED public television releases a video and story about conifer reproduction, featuring Jepson Curator Bruce Baldwin. See the video here

October 19, 2015
Curators Chelsea Specht (pictured here) and Paul Fine named Fellows of the California Academy of Sciences, joining a number of University and Jepson Herbaria curators who are already Fellows: David Ackerly, Bruce Baldwin, Tom Bruns, Kathy Ann Miller, Brent Mishler, Richard Moe, Dan Norris, Ellen Simms, Alan Smith, John Strother, Ben Tan, and John Taylor. ... Read more
photo of Chelsea Specht receiving an award
a group of people at a serpentine outcrop collecting a plant

August 31, 2015
Citizen science training workshop for the NSF-funded California Phylodiversity Project was held in conjunction with the California Native Plant Society's Rare Plant Treasure Hunt, at the McLaughlin Reserve ... Read More

August 26, 2015
University Herbarium receives major grant to support digitizing of microfungal collections, as part of a nationwide consortium. ... Read more
photo of microscropic Laboulbeniales fungus growing on insect exoskeleton
image of Porella moss growing on a log

July 2, 2015
The 2016 SO BE FREE foray will be held March 18-21, 2016, in North Coast Range near Occidental, California, approximately 1.5 hours north of San Francisco. Participants will see a variety of habitats ranging from coastal prairie, coast redwood forest, live oak woodland, serpentine chaparral, and chaparral scrub. Registration details here.

June 25, 2015
KQED public television releases a video and story about desiccation-tolerant mosses, featuring the Mishler Lab. See:
A chunk of dirt and moss on a rock
CCH logo of an Arctostaphylos specimen

February 18, 2015
The Consortium of California Herbaria (CCH) now serving data from 2 million specimens! ... Read more

November 19, 2014
New species of mushroom discovered right on the Berkeley campus by UC Research Associate Else Vellinga, in relation to the North American Mycoflora Project. ... Read more
A dried sample of Helvella dryophila (mushrooms)
cartoon diagram illustrating google analytics tracking

November 13, 2014
David Baxter, UC/JEPS Biodiversity Informatics Manager, coauthored a recent study on trends in usage of plant biodiversity websites, which included the Jepson eFlora and the Consortium of California Herbaria. Google Analytics reveals that these California-specific resources are frequently accessed by users all over the world, and are increasingly popular on mobile platforms. ... Open access article available here

August 9, 2014
Richard G. Beidleman
June 3, 1923 — August 7, 2014
We are mourning the loss of Research Associate Dick Beidleman, who was a devoted archivist and workshop instructor. Dr. Beidleman taught at the University of Colorado, Colorado State University, and Colorado College. He co-authored Plants of Rocky Mountain National Park, and his most recent book was California's Frontier Naturalists (University of California Press). We will miss his warmth, wisdom, and humor. Read his obituary in the Pacific Grove Cedar Street Times.
Alan Smith receiving the Asa Gray Award

July 30, 2014
Alan Smith was awarded the prestigious Asa Gray Award by the American Society of Plant Taxonomists at its July 2014 annual meeting, "for outstanding accomplishments pertinent to the goals of the Society." Dr. Smith has been curator of ferns in the University Herbarium at UC Berkeley for his whole career and was lauded for both his outstanding contributions to fern floristics and phylogenetic systematics, as well as for developing one of the most important and well-curated fern herbaria in the world. ... Read more

July 18, 2014
Research team led by UC/JEPS Director Brent Mishler has just published a major paper presenting new quantitative methods for looking at patterns of phylogenetic diversity and endemism on the landscape using collection data.
Read the University news release ... The paper is available at:
Seaweed specimen

July 2, 2014
The University and Jepson Herbaria has a new specimen search portal, providing access to databased records of herbarium specimens of all plant and fungal taxa from all over the world ... Try it out

June 19, 2014
The 2015 SO BE FREE foray will be held March 27-30, 2015, in the San Bernardino Mountains of Southern California, approximately 2 hours east of L.A. and 4 hours south of Las Vegas. Participants will see a variety of habitats ranging from cismontane chaparral, oak woodland, riparian wash, conifer woodland, and transmontane high desert.
Dr. Paul Silva

June 13, 2014
Paul Claude Silva
October 31 1922 — June 12 2014
Curator of Algae, University Herbarium, University of California, Berkeley
Phycology, biological nomenclature, the California flora, UC/JEPS, and numerous political, social, and cultural causes lost a devoted friend when Paul Silva died after a several-year illness. Paul's diligence and enthusiasm have affected all of us. We will feel his loss for a long time to come.

May 14, 2014
New book on California lichens by research associate Stephen Sharnoff, with gorgeous photos, was just published. Available from Yale University Press

March 4, 2014
New NSF grant to study California plant biodiversity and endemism in a phylogenetic context, received by Brent Mishler, Bruce Baldwin, and David Ackerly, will apply novel phylogenetic methods to better understand the distribution of plant diversity across both space and time in California. This new project takes advantage of the rapidly expanding Consortium of California Herbaria, the constantly updated Jepson eFlora for California, and the wealth of phylogenetic studies that have accumulated. A comprehensive phylogeny for California plants will be built, in part using newly generated molecular data generated from fresh material gathered via an innovative collaboration with citizen scientists from the California Native Plant Society ... Read More

February 21, 2014
A new eFlora project on California Seaweeds has been funded by a three year grant from the Packard Foundation to UC Curator of Algae Kathy Ann Miller and Director Brent Mishler. This online flora will update Abbott & Hollenberg's Marine Algae of California (1976) and provide a portal for students, ecologists, managers, and the public who wish to learn more about our 750 seaweed species. ... Read more

February 3, 2014
The Daily Cal's photographic profile of Integrative Biology 157, "California Ecosystems", taught by UC/JEPS Curator of Neotropical Flora, Paul Fine. ... Read more

January 7, 2014
The University features the Jepson Public Programs on the occasion of its 20th season. ... Read more
photo of a woman in a forest with large moss-covered boulders in the foreground

November 19, 2013
The 2014 SO BE FREE foray was held March 28-31, 2014, in the Santa Cruz Mountains approximately 1.5 hours south of San Francisco. More than 50 participants visited a region rich in limestone and marble, as well as marine sandstone deposits, supporting a number of rare endemic bryophytes. Habitats seen included coastal prairie, coast redwood forest, live oak forest, and chaparral scrub.

September 11, 2013
Roderic Park, Chair of the Jepson Trustees and long-time friend of the Herbaria, dies at 81. ... Read more
portrait photo of Roderic Park
photo of Dr. Jordon-Thaden with her mentee Imari Walker

September 10, 2013
Herbaria Research Associate Ingrid Jordon-Thaden is honored twice this summer, awarded with the Margaret Menzel Award for her presentation at the Botany2013 conference, as well as the NERDS Outstanding Mentor Award.

July 30, 2013
Jepson Curator Bruce Baldwin given the Asa Gray award by the American Society of Plant Taxonomists. ... Read more
photo of Madia elegans, a tarweed studied by Baldwin
drawing of the brown seaweed Cystoseira osmundacea

July 24, 2013
UC awarded a major NSF grant to complete digitizing the macroalgal collection. ... Read more.

Curatorial Volunteers Needed at University and Jepson Herbaria.

One Saturday of each month is a Volunteer Day in the Herbaria. Work with Herbaria staff to help prepare mounted plant specimens and database collections. Learn more about how you can help!

Dates for 2019-2020: September 7,  October 5,  November 2,  December 7,  February 8,
March 7,  April 18 (Cal Day),  May 9.
Archive of past news items...

Featured Projects
Consortium of California Herbaria

The Consortium of California Herbaria serves as a gateway to information from California vascular plant specimens that are housed in herbaria throughout the state. The display now includes information from 1.8 million specimen records, all searchable through a single interface. Read more...

Baldwin Lab

Evolutionary and systematic studies of Californian vascular plants are a major research focus of the Baldwin Lab in the Jepson Herbarium, where investigations of the highly diverse native tarweeds and their Hawaiian-silversword descendants continue apace. Read more...

Berkeley Natural History Museums   The University and Jepson Herbaria are part of the Berkeley Natural History Museums Consortium.
Picea breweriana, Trinity Alps, California - Photo credit: John Game