The NRDB is a compilation of observations of flora and fauna made at open space and nature preserves in the greater San Francisco Bay Area. The database can be searched for available data on flora, mammals, birds, and reptiles-amphibians-fishes seen at one or more preserves.

How to Use the NRDB

  What's New   Searches   Reports   Sightings   Subsets   Nomenclature Changes   Related Links   Miscellaneous    
NRDB Release of March, 2020
Statistics Species: 4,510; Preserves: 238; Sightings: 95,155.
Jack London State Historic Park
California State Parks
What's New This will be the final public release of the NRDB. After August 18, 2020, the NRDB will no longer be accessible online. If you have need for special searches or reports after that date, please email Dennis directly at

Bill and Dennis want to express their very sincere thanks to all who have contributed their observations and data to ensure that this valuable resource is as up to date and complete as possible.

Data Exchange with Calflora. We are pleased to announce that we have exchanged NRDB observations of flora with those of Calflora. This means that, where possible, Calflora has incorporated NRDB observations into its system, and the NRDB has incorporated new observations obtained from Calflora. Check the Last Update field (Reports => Preserves => Last Update) to learn what preserves have additional data from Calflora. If the Last Update field for a preserve is after February 1, 2018, then additional observations are available for that preserve, almost all from Calflora.

We want to express our thanks to Calflora staff for aiding in this exchange.

See About under the Miscellaneous tab to learn about effective ways to access the NRDB and Calflora data in their respective systems.

Nomenclature. Flora species nomenclature has been updated to reflect the changes made in updates to The Jepson Manual: Vascular Plants of California, Second Edition, through Revision 5 ( Further, common names have been reviewed and priority given to those used by Jepson.
Don't Forget Checklist Search and Spreadsheet View

Checklist Search provides a simple and fast way to generate a pre-formatted checklist suitable for printing. Checklist Search is the first selection under the Searches menu. Use Advanced Search to generate checklists with custom formatting or contents.

All search results (except Checklist Search results) now include a button to view the search results as a spreadsheet using Microsoft Excel.