**Code**: [UCR](https://sweetgum.nybg.org/science/ih/herbarium-details/?irn=126626) **Organization**: University of California **Department**: Botany and Plant Sciences Department **Location**: Riverside, California, U.S.A. **Total number of specimens**: 223500 **Current status**: Active **Date founded**: 1956 **Taxonomic coverage**: Vascular plants; fungi and lichens **Geographic coverage**: California, southwestern U.S. and Mexico, but with holdings from throughout the Americas **Incorporated herbaria**: Riverside District, Bureau of Land Management, U.S. Department of the Interior. **Important collectors**: S. Boyd, D. Bramlet, R. A. Bye, Jr., O. F. Clarke, I. J. Condit, H. S. Fawcett, I. Garcia R., G. K. Helmkamp, E. C. Jaeger, B. L. Johnson, H. Kennedy, K. Knudsen, T. Krantz, B. Pitzer, B. A. Prigge, M. Provance, F. M. Reed, R. Riefner, F. Roberts, J. C. Roos, A. C. Sanders, G. P. Schultz, R. D. Swinney, R. F. Thorne, T. D. Van Devender, F. C. Vasek, S. D. White, R. Worthington, L. B. Ziegler **Date modified in Index Herbariorum**: 2018-04-12 > [!cite] This page is automatically generated • Data on this page were obtained from [Index Herbariorum](https://sweetgum.nybg.org/science/ih/) on 2023-08-23. • Meaning of acronyms in TL-2 is not always the same as in IH. Consult list of original [[Abbreviations|abbreviations]] if you suspect acronym mismatch.