The genus Ipomoea currently includes c. 810 accepted species. This encyclopedia presents basic information on all of them, including links to the type collections and the protologue, a brief description, overall distribution, field photos when available and other relevant information. For the species in the American continent, the data presented here is based on our Ipomoea monograph published in 2020, and is more or less continuously updated as new information is generated. Species distribution data can also be obtained through the specimen collection database.