The UC SAREP Cover Crop Database includes over 5,000 items gleaned from more than 600 separate sources, including journal articles, conference proceedings, standard textbooks, unpublished data, and personal communications from researchers and farmers. The information in the database concerns the management and effects of more than 32 species of plants usable as cover crops. More than 400 different cover crop images are also available for viewing online. The database was developed with funding from USDA's Sustainable Agriculture Research and Education program (SARE), the State of California's Water Resources Control Board, and the California Energy Commission.