GMDRC - Sweeney Granite Mountains Desert Research Center (GMDRC)

The University of California’s Sweeney Granite Mountains Desert Research Center Herbarium (GMDRC) houses 14,000 vascular plant specimens, available to researchers and visiting classes at the GMDRC. This regional herbarium holds specimens from the western U.S. with a primary focus on the transmontane bioregions of California, Nevada, Arizona and Utah. Our collection is fully databased (Filemaker Pro) and a digital imaging project is ongoing.
Contact: Jim André, gmdrc@ucr.edu
Contact: Tasha La Doux, gmdrc@ucr.edu
Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 3 April 2022
Digital Metadata: EML File
Collection Statistics
  • 25,886 specimen records
  • 23,098 (89%) georeferenced
  • 25,176 (97%) identified to species
  • 138 families
  • 805 genera
  • 2,377 species
  • 3,539 total taxa (including subsp. and var.)
Extra Statistics
Taxon Distribution
Taxon Distribution