California Polytechnic State University, Robert F. Hoover Herbarium (OBI)

The Hoover Herbarium houses 85,000+ specimens of vascular plants, algae, lichens, and bryophytes. The geographic focus is San Luis Obispo County, California. The collection also includes many specimens from other areas of California, other states of the US, particularly Arizona, and some from other regions of the world, especially Mexico. Emphasis areas in the collection include Asteraceae, Lupinus, and cultivated Eucalyptus. Major collections include Robert F. Hoover (1946–1969), David J. Keil (1966–present), Rhonda Riggins (1970s–2000), Tracy Call (mostly Apiaceae—late 1940s–1960s), and Robert J. Rodin (1940s–1977). The collection is used extensively in undergraduate teaching and training.

Important Collections: Robert F. Hoover (1946–1969), David J. Keil (1966–present), Rhonda Riggins (1970s–2000), Tracy Call (mostly Apiaceae—late 1940s–1960s), and Robert J. Rodin (1940s–1977)
Director and Assistant Professor: Jenn Yost, jyost@calpoly.edu
Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 4 April 2022
IPT / DwC-A Source:
Digital Metadata: EML File
Collection Statistics
  • 93,014 specimen records
  • 61,054 (66%) georeferenced
  • 80,767 (87%) with images (81,234 total images)
  • 70,863 (76%) identified to species
  • 387 families
  • 2,470 genera
  • 10,446 species
  • 10,616 total taxa (including subsp. and var.)
Extra Statistics
Geographic Distribution
Click on the specimen record counts within the parenthesis to return the records for that term