Native American Ethnobotany offers visitors a comprehensive "database of plants used as drugs, foods, dyes, fibers, and more, by Native Peoples of North America." This searchable database is the result of more than 25 years of work and contains over 44,000 items, which "represents uses by 291 Native American groups of 4,029 species from 243 different plant families." Visitors can do a simple text search, but for more precision, they can also conduct a filtered search allowing them to specify tribe and plant use in addition to the text search. Visitors will also find lists of all the tribes and plant species contained in the database, each linking to all their documented plant uses. The database includes links to the USDA PLANTS database in the details of each plant-use documentation, thus providing immediate access to the plants' complete botanical information. The current version of Native American Ethnobotany is supported by Dan Moerman, Professor Emeritus of Anthropology at the University of Michigan-Dearborn, and Jason Best, Director of Biodiversity Informatics at the Botanical Research Institute of Texas, with funding from the National Science Foundation.