Databases
San Diego County Plant Atlas The Jepson Interchange Efloras Flora of North America Royal Botanic Garden Tropicos USDA General
Plant Systematics Resources Plant Images
Botanical Image Database Calphoto - Plants Flowering Vascular Plant Families Plants of San Diego County, California Nomenclature Index Herbariorum International Code of Botanical Nomenclature - 2005 (Vienna) International Plant Names Index
Herbaria
California Herbaria: San Diego Natural History Museum (SD) Rancho Santa Ana Botanic Garden (RSA-POM) University of California Riverside (UCR) Santa Barbara Botanic Garden (SBBG) University of California (UC-JEPS) California Academy of Sciences (CAS-DS) University of California Davis (DAV) National Herbaria: Missouri Botanic Garden (MO) New York Botanic Garden (NY) Smithsonian Institutiion (US) Gray Herbarium Harvard (GH) Farichild Tropical Garden (FTG) Field Museum of Natural History (F) University of Arizona (ARIZ) International Herbaria: Kew Botanic Garden (K) University of Paris (P) National Herbarium Netherlands, Utrecht University (U) National Herbarium of New South Wales (NSW)