The Ahart Herbarium is open to the public!
Fridays
9 a.m. – 5 p.m.
California State University, Chico
Holt Hall Room 129
The Ahart Herbarium allows scientists, students, state agencies, and visitors to see and examine more than 115,300 North State plants, dating from the pre-1930s to today. This living laboratory and historical archive helps us study regional plants, identify rare species, and recover genetic information—it is a critical resource as our changing climate rapidly reshapes local ecosystems.
For more information about the Ahart Herbarium, please visit www.csuchico.edu/herbarium/index.shtml
View the current Friends of the Ahart Herbarium newsletter.
(Download here)
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Explore the CHSC specimen collection
Please go to the Consortium of California Herbaria for further exploration

Cottonwoods and willows are the most common riparian hardwood species in California and yet many of us have little idea of how to tell them apart. The goal of the workshop is to instill confidence about vegetative characteristics used in the identification keys in The Jepson Manual and familiarize participants with some of the most common willows in California.