Rancho Santa Ana Botanic Garden Herbarium (RSABG-RSA-POM)

The combined Herbarium of Rancho Santa Ana Botanic Garden and Pomona College (RSA-POM) is a museum-quality collection of vascular plant specimens. With current holdings totaling over 1,200,000 specimens, the Herbarium is the third largest in California. The Herbarium is recognized throughout the world for its strength in documenting the diversity, distribution, variation, and ecology of more than 6500 species of flowering plants, conifers, and ferns in California, which constitutes nearly 50% of the total collection. The holdings from Southern California exceed 250,000 and are unsurpassed by any other herbarium. Approximately 95% of the collection is composed of mounted sheets and filed according to a standardized system of classification. Ancillary collections that augment the collection include a cone & fruit collection, wood collection, fluid preserved collection, and pollen and anatomy slide collection.
Contact: Mare Nazaire, Administrative Curator (mnazaire@rsabg.org)
Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 3 July 2018
Digital Metadata: EML File
Collection Statistics
  • 608,574 specimen records
  • 143,281 (24%) georeferenced
  • 427,757 (70%) identified to species
  • 960 families
  • 3,409 genera
  • 17,994 species
  • 19,602 total taxa (including subsp. and var.)
Extra Statistics
The National Science Foundation
This project made possible by National Science Foundation Award 1410069