Granite Mountains Desert Research Center (GMDRC)

The Sweeney Granite Mountains Desert Research Center Herbarium is used primarily as a teaching herbarium for visiting researchers and classes. This facility is part of the University of California's Natural Reserve System, which serves a mission of promoting a better understanding and wise management of arid lands, especially the California deserts. This regional herbarium holds specimens from the eastern Sierra Nevada, Mojave, Great Basin, and Sonoran Desert bioregions, with the primary focus being the east Mojave Desert of California. Our collection is completely databased (Filemaker Pro) and available upon request.
Contact: Jim André/Tasha La Doux (
Collection Type: Preserved Specimens
Management: Data snapshot of local collection database
Last Update: 5 February 2017
Digital Metadata: EML File
Sweeney Granite Mountains Desert Research Center
UC Natural Reserve System
HC1 Box 101
Kelso, CALIFORNIA   92309
UPS and FEDEX: 909 Armory Rd. #118, Barstow, CA 92311
Collection Statistics
  • 8,953 specimen records
  • 6,653 (74%) georeferenced
  • 8,789 (98%) identified to species
  • 121 families
  • 718 genera
  • 1,850 species
  • 2,731 total taxa (including subsp. and var.)
Extra Statistics