The Chico State Herbarium

California Phenology Thematic Collections Network

Screenshot of CHH2 websiteThe Chico State Herbarium is actively photographing specimens in the collection and linking the images to the collection information for each species. This information is accessible through the California Phenology Thematic Collections Network (www.CCH2.org(opens in new window)). Through a National Science Foundation grant, the Herbarium will be imaging over 30,000 specimens in the collection which will be similar to the one here. Collectively, over 23 different herbaria and collections across California will be located on CCH2. Check out the website!(opens in new window) 

Screenshot of CCH2 Website

Entire specimen Specimen close

The Chico State Herbarium passed another minor milestone by accessioning its 120,000th specimen – see the number 120,000 stamped in the middle of the Herbarium logo on the lower left side of the sheet in the left photograph. This specimen is another fine example of the collecting and specimen mounting of Lowell Ahart – his collection number 21,434 from last summer.

Located in Holt Hall room 129, the Herbarium is the most complete repository of plant specimens from northeastern California. The emphasis is on the northern California flora, and includes a great number of rare, threatened, and endangered plant species. Established with specimens donated by the late Professor Vesta Holt in the 1950's, the herbarium now contains more than 107,000 dried and mounted plant specimens. The majority of samples are flowering plants, conifers, and ferns, but bryophytes, lichens, and especially slime molds, are also well represented. The herbarium is used extensively for identification of sensitive and other plant species by various agencies and individuals. Loans of herbarium specimens are made to any higher academic institutions who request them.

Facilities available to visitors to the herbarium include the use of high-quality dissecting scopes, a compound microscope, an extensive reference library, an internet-connected computer, an internet connection for personal computers, and, with suitable training, access to the collection of specimens.

Users of the herbarium facilities and collection are encouraged to make plant collections during their field excursions and donate them to the herbarium. This is how the collection grows and increases its utility and importance to the whole botanical community.

Herbarium Logo

Friends of the Herbarium Annual Meeting

Friday, October 25, 2019,
4pm - 6pm, Holt 170
Guest Speaker: Michelle Coppoletta, Ecologist with the Sierra Cascade Province, US Forest Service (view PDF with more info >> (PDF))
Title: Fire regime alteration in natural areas underscores the need to restore a key ecological process
Plus: Jokerst Awardee Presentations

Jim Jokerst Field Botany Award

Jokerst Field Botany Grant Award in Support of Student Research

Gabrielle Wyatt: “Heavy metal phytoremediation at the Butte College Bioswale: Phenological variance in three California natives"

Constantin Raether: “Defense against herbivory by galling Cynipidae wasps in valley oak (Quercus lobate): testing the Plant Vigor Hypothesis and the Phenological Synchrony Hypothesis in a large common garden experiment"

Upcoming Workshops

Upcoming 2019 workshops from Friends of the Herbarium!

Fire-Injured Trees: Predicting Mortality and Assessing Hazard
Wednesday, October 16, 2019
View more info >>(opens in new window)

Creating Inks and Watercolors from Locally Sourced Plants and Minerals
Saturday, October 26, 2019
View a PDF with more info >> (PDF)

Visit the event calendar(opens in new window) for more info!