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California Academy of Sciences (CAS-BOT-BC)

The herbarium of the California Academy of Sciences (CAS) is the largest collection of vascular plants in the western U.S. It is the sixth largest collection in the United States. Together with the Herbarium of the University of California at Berkeley (UC) the San Francisco Bay area is regarded as a National Resource Center for systematic botany. These two major collections have an informal agreement to avoid duplication, thus providing botanists with a rich and varied resource for research.

Contacts: Emily Magnaghi, emagnaghi@calacademy.org
Homepage: https://www.calacademy.org/scientists/botany-collections
Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 17 March 2023
IPT / DwC-A Source:
Digital Metadata: EML File
Usage Rights: CC BY-NC (Attribution-Non-Commercial)
Collection Statistics
  • 77,946 specimen records
  • 49,748 (64%) georeferenced
  • 55,617 (71%) with images (110,779 total images)
  • 75,903 (97%) identified to species
  • 134 families
  • 560 genera
  • 2,485 species
  • 2,691 total taxa (including subsp. and var.)
Extra Statistics