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About this Web Site

This web site is in beta release. The current version is 1.10.07-Beta_2021-07-14. Comments and suggestions for how to improve searching and reporting are welcome. Please send your feedback to NAL Staff. Please replace any bookmarks to the legacy site at with this site.

About the Data

Data are the latest available. Unless otherwise noted all references are to Duke, James A. 1992. Handbook of phytochemical constituents of GRAS herbs and other economic plants. Boca Raton, FL. CRC Press. Please read and understand the disclaimer before using the data. Users of the legacy system can see a Cross-Reference to Queries in the Legacy System. For complete metadata and a data dictionary, see the Ag Data Commons record about this database (

About Dr. James Duke

AFSIC Videos of Dr. Duke

Dr. James A. Duke Wikipedia Biography

Dr. Duke's Phytochemical and Ethnobotanical Databases Wikipedia page

Dr. Duke's Green Farmacy Garden

How to Cite the Database

Contents of this database are made available under a Creative Commons CC0 public domain dedication. The suggested citation is:
U.S. Department of Agriculture, Agricultural Research Service. 1992-2016. Dr. Duke's Phytochemical and Ethnobotanical Databases. Home Page,